Urban Advocates Say New Gun Control Talk Overdue

For years, voices have cried in the urban wilderness: We need to talk about gun control.

Yet the guns blazed on.

It took a small-town slaughter for gun control to become a political priority. Now, decades' worth of big-city arguments against easy access to guns are finally being heard, because an unstable young man invaded an elementary school in Newtown, Conn., with a military-style assault rifle and 30-bullet magazines. Twenty young children and six adults were slain.

President Barack Obama called the tragedy a "wake-up call." Vice President Joe Biden met Thursday with Obama's cabinet and law-enforcement officers from around the country to launch a task force on reducing gun violence. Lawmakers who have long resisted gun control are saying something must be done.

Such action is energizing those who have sought to reduce urban gun violence. Donations are up in some places; other leaders have been working overtime due to this unprecedented moment.

The moment also is causing some to reflect on the sudden change of heart. Why now? Why weren't we moved to act by the killing of so many other children, albeit one by one, in urban areas?

Certainly, Newtown is a special case, 6- and 7-year-olds riddled with bullets inside the sanctuary of a classroom. Even in a nation rife with violence, where there have been three other mass slayings since July and millions enjoy virtual killing via video games, the nature of this tragedy is shocking.

Critics Slam NRA for Proposing Armed School Guards Watch Video

Gun Violence Victims, Survivors Share Thoughts After Newtown Massacre Watch Video

But still: "There's a lot of talk now about we have to protect our children. We have to protect all of our children, not just the ones living in the suburbs," said Tammerlin Drummond, a columnist for the Oakland Tribune.

In her column Monday, Drummond wrote about 7-year-old Heaven Sutton of Chicago, who was standing next to her mother selling candy when she was killed in the crossfire of a gang shootout. Also in Chicago, which has been plagued by a recent spike in gun violence: 6-year-old Aaliyah Shell was caught in a drive-by while standing on her front porch; and 13-year-old Tyquan Tyler was killed when a someone in a car shot into a group of youths outside a party.

Wrote Drummond: "It has taken the murders of 20 babies and six adults in an upper-middle class neighborhood in Connecticut to achieve what thousands of gun fatalities in urban communities all over this country could not."

So again: What took so long? The answers are complicated by many factors: resignation to urban violence, even among some of those who live there; the assumption that cities are dangerous and small towns safe; the idea that some urban victims place themselves in harm's way.

In March, the Children's Defense Fund issued a report titled "Protect Children, Not Guns 2012." It analyzed the latest federal data and counted 299 children under age 10 killed by guns in 2008 and 2009. That figure included 173 preschool-age children.

Black children and teens accounted for 45 percent of all child and teen gun deaths, even though they were only 15 percent of the child/teen population.

"Every child's life is sacred and it is long past time that we protect it," said CDF president Marian Wright Edelman in the report.

It got almost no press coverage — until nine months later, when Newtown happened.

Tim Stevens, founder and chairman of the Black Political Empowerment Project in Pittsburgh, has been focusing on urban gun violence since 2007, when he said Pennsylvania was declared the worst state for black-on-black violence.

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Strong 6.8 quake strikes off Vanuatu: USGS

SYDNEY: A strong 6.8-magnitude earthquake hit off the coast of the South Pacific island of Vanuatu on Saturday, the US Geological Survey said, but no immediate tsunami warning was issued.

The quake struck at a depth of more than 200 kilometres around 2230 GMT Friday some 130 kilometres north of Santo, USGS said.

"It's quite deep ... so there's no tsunami," said David Jepsen, a seismologist with Geoscience Australia which measured the quake at 6.6 magnitude.

"I think it's well away from (the capital) Port Vila... but it's closer to some of the islands further to the northwest, but they would have had some moderate shaking really," he told AFP.

The Hawaii-based Pacific Tsunami Warning Center said a destructive tsunami was not generated, based on the earthquake and historical tsunami data.

Vanuatu lies on the so-called "Pacific Ring of Fire", a zone of frequent seismic activity caused by friction between shifting tectonic plates.

It has been rocked by several large quakes in recent years, averaging about three magnitude 7.0 or above incidents every year without any major damage.

- AFP/jc

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Why does my external hard drive only show 2.2TB?

External hard drives are exceptionally useful for expanding storage capabilities for both backups and data management. While external hard drives are often sold in preconfigured packages by manufacturers, another popular option is to purchase an external hard-drive enclosure and then use any drive of your choice in it. This is beneficial because as your demands for storage increase, you can replace the enclosure's drive with a larger one.

These days, the availability of hard drives with 4TB of storage are enticing for people to swap into their existing enclosures; however, when doing so they may find that the system will only recognize 2.2TB of the drive, regardless of how they partition or format the device.

While modern file-system formats such as HFS+, NTFS, and ExFAT ought to handle volume sizes of between hundreds of gigabytes to zettabytes, and though operating systems like OS X have increased the maximum volume size from 2TB to 8EB (exabytes) over the years, there are hardware limitations that may limit the size of the volume that can be used. If you are using an older drive enclosure for your large hard drive, then the controllers on it may not be capable of handling over 2.2TB, regardless of the software environment being used around it.

This problem happens because of the use of LBA (logical block addressing) in modern hard-drive controllers coupled with a hardware-based limit of how many blocks can be included in the LBA scheme. Early LBA controllers used 32-bit (or lower) addressing coupled with a maximum supported block size of 512 bytes. This means they support up to 2^32 or 4,294,967,296 blocks for a device, and with each block being 512 bytes, this translates to a maximum of 2,199,023,255,552 bytes, or 2.199TB.

Unfortunately in many cases these limits are hard-coded in enclosure's firmware, so even though modern drives use 4,096-byte sectors, the system will still only address these sectors as 512 bytes in size, resulting in both a waste of space and degraded performance.

The only way around this problem is to replace your drive enclosure with a new one that has proper support for both 48-bit (or greater) LBA and 4,096-byte sectors in hard drives. Luckily most enclosures on the market today do support this, so if you run into this problem, you should be up and running in no time.

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Pictures: Fungi Get Into the Holiday Spirit

Photograph courtesy Stephanie Mounaud, J. Craig Venter Institute

Mounaud combined different fungi to create a Santa hat and spell out a holiday message.

Different fungal grow at different rates, so Mounaud's artwork rarely lasts for long. There's only a short window of time when they actually look like what they're suppose to.

"You do have to keep that in perspective when you're making these creations," she said.

For example, the A. flavus fungi that she used to write this message from Santa grows very quickly. "The next day, after looking at this plate, it didn't say 'Ho Ho Ho.' It said 'blah blah blah,'" Mounaud said.

The message also eventually turned green, which was the color she was initially after. "It was a really nice green, which is what I was hoping for. But yellow will do," she said.

The hat was particularly challenging. The fungus used to create it "was troubling because at different temperatures it grows differently. The pigment in this one forms at room temperature but this type of growth needed higher temperatures," Mounaud said.

Not all fungus will grow nicely together. For example, in the hat, "N. fischeri [the brim and ball] did not want to play nice with the P. marneffei [red part of hat] ... so they remained slightly separated."

Published December 21, 2012

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Obama Says He Is 'Ready and Willing' to Get Deal

President Barack Obama says he is "ready and willing" to get a big package done to deal with the "fiscal cliff" and says there's no reason not to protect middle-class Americans from tax increases.

Mandel Ngan/AFP/Getty Images

Fiscal Cliff: Boehner Doesn't Have Votes for Plan B Watch Video

Next Steps for Fiscal Cliff? 'God Only Knows,' Says Boehner Watch Video

'Fiscal Cliff' Negotiations: Boehner's Plan B Watch Video

Obama says he spoke Friday with House Speaker John Boehner and met with Senate Majority Leader Harry Reid. He says Congress should pass a plan to extend tax breaks for the middle class and extend unemployment benefits.

Obama says no one can get 100 percent of what they want and there are "real consequences" to how they deal with the across-the-board tax increases and steep spending cuts scheduled to kick in Jan. 1. Economists fear the combination could deliver a blow to the U.S. economy.

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Van-sized space rock is a cosmic oddball

The shattered remains of a high-profile space rock are oddly low in organic materials, the raw ingredients for life. The discovery adds a slight wrinkle to the theory that early Earth was seeded with organics by meteorite impacts.

In April a van-sized meteor was seen streaking over northern California and Nevada in broad daylight. The fireball exploded with a sonic boom and sprayed the region with fragments. Videos, photographs and weather radar data allowed the meteor's trajectory to be reconstructed, and teams quickly mobilised to search for pieces in the foothills of the Sierra Nevada in northern California.

Researchers readily identified the meteorites as rare CM chondrites, thought to be one of the oldest types of rock in the universe. "Because the meteorites were discovered so freshly, for the first time we had a chance to study this type of meteorite in a pristine form," says Peter Jenniskens of the SETI Institute in Mountain View, California, who led the search effort and the subsequent study of the space rocks.

Jenniskens personally found a fragment in a parking lot, where it remained relatively free of soil contaminants. "That's the best you could hope for, other than landing in a freezer," says Daniel Glavin of NASA's Goddard Space Flight Center in Greenbelt, Maryland.

Battered past

CM chondrites make up only about 1 per cent of known meteorites. Most of them contain plenty of organic materials, including amino acids, the building blocks of life on Earth.

Jenniskens and colleagues found that the California fragments also have amino acids, including some not found naturally on Earth. But in three rocks collected before a heavy rainstorm, which bathed the other pieces in earthly contaminants, organics are less abundant by a factor of 1000 than in previously studied CM chondrites.

These three rocks could not have lost organics due to space "weathering": analysis of the meteorites' exposure to cosmic rays suggests the original meteor was flying through space for only about 50,000 years before hitting Earth.

Based on its trajectory and its relatively short flight time, Jenniskens thinks the meteor can be traced back to a family of asteroids dominated by 495 Eulalia, a group known as a possible source of CM chondrites. It is probably a piece that broke off during an impact, revealing the relatively pristine material inside.

So what happened to its organics? Jenniskens' team found that the meteorites are breccia – smaller rocks cemented together – which suggests that the asteroid from which they came took a series of beatings. Those impacts, or possibly other processes inside the asteroid, could have heated it enough to destroy most organic material.

Limited delivery

The result might have implications for the organics delivery theory, says Bill Bottke of the Southwest Research Institute in Boulder, Colorado.

"It shows that not all asteroids can deliver sufficient quantities. One of the disappointments is that, from a prebiotic organic chemistry perspective, it was very limited," says Bottke. "But this is an unusual case. Most [CM chondrites] are loaded with organic compounds."

Still, studying the space rocks will help us prepare future missions to asteroids such as OSIRIS-Rex, scheduled to take off for asteroid 1999 RQ36 in 2016 and bring a sample back in 2023.

"In some ways, we've had a sample, a very fresh one, come to us," says Bottke. "This is a test bed for the techniques we'll use in that mission."

Journal reference: Science, DOI: 10.1126/science.1227163

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Dollar steady as investors await fiscal cliff sign

WASHINGTON: The dollar lost a little bit of ground against the euro and was largely flat against the yen in quiet trade on Thursday as investors awaited a clear sign from US "fiscal cliff" talks.

The euro stood at $1.3241 towards 2200 GMT, up from $1.3226 late Wednesday. It also rose against the Japanese yen, reaching 111.72 yen compared to 111.59 yen a day earlier.

The dollar held steady against the yen, after reaching its highest level against the currency since April 2011 on Wednesday.

On Thursday, the greenback edged lower to 84.38 yen towards 2200 GMT from 84.39 yen a day earlier.

Japan's central bank unveiled more huge monetary easing earlier on Thursday in the wake of a weekend election won by the Liberal Democratic Party.

With an end-of-year deadline approaching, the markets are watching whether Washington can avert the so-called fiscal cliff, a mix of tax hikes and spending cuts set to take effect in January that could plunge the world's biggest economy back into recession.

Analysts said remarks by top Republican John Boehner had sparked slight optimism, increasing investors' appetite for risk, for the euro among other things.

Talks between President Barack Obama and Boehner on averting the "fiscal cliff" have stalled amid accusations of political grandstanding on both sides.

In other currencies, the dollar slipped to 0.9115 Swiss francs, while the pound rose to $1.6280.

- AFP/fa

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Instagram rolls back terms of service after ownership dustup

In the wake of user backlash over image ownership, Instagram announced today that it would revert its terms of service back to the version that has been in place since the service launched two years ago.

The Facebook-owned app ignited a storm of protest with the announcement earlier this week that it was claiming perpetual rights to sell users' photographs without notifying or compensating the photographer. Under the new policy, Facebook claimed the perpetual right to license all public Instagram photos to companies or any other organization, including for advertising purposes, effectively transforming the Web site into the world's largest stock photo agency.

Since the publication of the updates, "it became clear that we failed to fulfill what I consider one of our most important responsibilities -- to communicate our intentions clearly," Instagram founder and CEO Kevin Systrom wrote in a company blog post. "I am sorry for that, and I am focused on making it right."

"Going forward, rather than obtain permission from you to introduce possible advertising products we have not yet developed, we are going to take the time to complete our plans, and then come back to our users and explain how we would like for our advertising business to work," he said.

Systrom also denied that the company ever intended to sell users' images.

"I want to be really clear: Instagram has no intention of selling your photos, and we never did. We don't own your photos -- you do," he said.

The changes come a day after the app maker apologized to its users, saying it would "remove" language from its legal terms that would have let it sell users' photos or use them in advertisements. Systrom said it's "our mistake that this language is confusing" and that the company is "working on updated language."

more to come ...

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Hollies Get Prickly for a Reason

With shiny evergreen leaves and bright red berries, holly trees are a naturally festive decoration seen throughout the Christmas season.

They're famously sharp. But not all holly leaves are prickly, even on the same tree. And scientists now think they know how the plants are able to make sharper leaves, seemingly at will. (Watch a video about how Christmas trees are made.)

A new study published in the Botanical Journal of the Linnean Society suggests leaf variations on a single tree are the combined result of animals browsing on them and the trees' swift molecular response to that sort of environmental pressure.

Carlos Herrera of the National Research Council of Spain led the study in southeastern Spain. He and his team investigated the European holly tree, Ilex aquifolium. Hollies, like other plants, can make different types of leaves at the same time. This is called heterophylly. Out of the 40 holly trees they studied, 39 trees displayed different kinds of leaves, both prickly and smooth.

Five holly leaves from the same tree.

Photographs by Emmanuel Lattes, Alamy

Some trees looked like they had been browsed upon by wild goats and deer. On those trees, the lower 8 feet (2.5 meters) had more prickly leaves, while higher up the leaves tended to be smooth. Scientists wanted to figure out how the holly trees could make the change in leaf shape so quickly.

All of the leaves on a tree are genetic twins and share exactly the same DNA sequence. By looking in the DNA for traces of a chemical process called methylation, which modifies DNA but doesn't alter the organism's genetic sequence, the team could determine whether leaf variation was a response to environmental or genetic changes. They found a relationship between recent browsing by animals, the growth of prickly leaves, and methylation.

"In holly, what we found is that the DNA of prickly leaves was significantly less methylated than prickless leaves, and from this we inferred that methylation changes are ultimately responsible for leaf shape changes," Herrera said. "The novelty of our study is that we show that these well-known changes in leaf type are associated with differences in DNA methylation patterns, that is, epigenetic changes that do not depend on variation in the sequence of DNA."

"Heterophylly is an obvious feature of a well-known species, and this has been ascribed to browsing. However, until now, no one has been able to come up with a mechanism for how this occurs," said Mike Fay, chief editor of the Botanical Journal of the Linnean Society and head of genetics at the Kew Royal Botanic Gardens. "With this new study, we are now one major step forward towards understanding how."

Epigenetic changes take place independently of variation in the genetic DNA sequence. (Read more about epigenetics in National Geographic magazine's "A Thing or Two About Twins.")

"This has clear and important implications for plant conservation," Herrera said. In natural populations that have their genetic variation depleted by habitat loss, the ability to respond quickly, without waiting for slower DNA changes, could help organisms survive accelerated environmental change. The plants' adaptability, he says, is an "optimistic note" amidst so many conservation concerns. (Related: "Wild Holly, Mistletoe, Spread With Warmer Winters.")

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Obama, Boehner Not Far Apart on 'Cliff'? Not Really

Dec 20, 2012 5:09pm

Carolyn Kaster/AP Photo; Pablo Martinez Monsivais/AP Photo

There are some in Washington and around Capitol Hill who keep saying that House Speaker John Boehner and President Obama really aren’t that far apart on the “fiscal cliff” and there will be a deal despite Boehner’s proposal to hold a vote on his “Plan B.”

Let’s deconstruct the two parts of that thinking.

Boehner and Obama really aren’t that far apart?

Not really.

The differences are more significant than just tax rates.  Republicans say the Democratic offer is really $800 billion in spending cuts and $1.3 trillion in tax increases.  That is because the inflation adjustment applies to tax rates* as well as Social Security — resulting in less than $100 billion in added tax revenues.

Democrats count that as a spending cut.  Republicans say that is a tax hike.  So the real difference, from their perspective, is $450 billion.  The $400,000 vs. $1 million threshold for tax rates hikes is just one part of this.  Republicans want more spending cuts and fewer tax increases.

Related: Read More About the Fiscal Cliff

Obama and Senate Democrats are fond of saying they are this close (fingers close together).  They say Boehner should just accept the president’s offer.

But, as I asked Senate Majority Leader Harry Reid, D-Nev., earlier today: If you are this close why not just accept Boehner’s offer?  He dodged, saying that Boehner’s offer wasn’t really an offer and likened him to Lucy and the football — you’ll recall the routine in which the “Peanuts” character would pull away the ball at the last second and leave Charlie Brown kicking at nothing but air.

Both sides like to talk about Lucy and the football, but that is another story.  Will there be a deal?

They should be able to do a deal.  I know where the deal should be.  So do you.  But, really, they aren’t quite as close as the nifty charts like this one from the Washington Post suggest. And this is about much more than the $400,000 tax-rate threshold.

*By lowering the government’s calculation for inflation, the income level for the top rates would rise at a slower rate, putting more and more people into the top rates.

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