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The court said biotech company Myriad could not patent human genes, since they already "existed in nature." But when it comes to synthetic DNA, the court said patents may be acceptable in some cases.

Last year, the number of homeless U.S. veterans on a given night fell 12 percent from the year before. But tens of thousands were still on the streets, and more could soon join them as troops return home. President Obama has vowed to end veterans' homelessness by 2015.

A slew of new national polls show President Obama leading presumptive GOP nominee Mitt Romney — except when he isn't. With 200-plus days until the election, here's a guide to navigating the confounding world of poll watching.

Vice President Joe Biden and Republican vice presidential candidate Paul Ryan will hold their only debate Thursday night in Danville, Kentucky. Biden will be under pressure to shift the momentum back to the Democratic ticket. Ryan will be trying to keep it going in Mitt Romney's direction.

Painkillers containing the drug hydrocodone have provided relief to many in pain. But a panel recommended the federal government place restrictions on access to the drugs to lessen the odds of addiction.

More than twice as many people read news recommended on Facebook than on Twitter, according to a new study from the Pew Research Center's Project for Excellence in Journalism. One in four Americans now gets their news digitally from mobile devices.

Tempers are boiling in Greece and other European nations that traded bailouts for a strict austerity plan. Some say Germany's rigid solution is already failing, and may even fracture the euro zone. If that happens, that'll be very bad news for the U.S., too.

The role former CIA Director David Petraeus played in creating the discredited U.S. "talking points" about the violence in Benghazi, Libya, that left four Americans dead, including a U.S. ambassador, last year is under new scrutiny, as a Washington Post story suggests that Petraeus sought to shape the resulting memo to favor his agency.

All is Gatsbyish excess on the Croisette, where the Cannes Film Festival's early tone might well have been set by Baz Luhrmann's lavish film — and by Sofia Coppola's accomplished The Bling Ring.

The targeting by IRS workers in Cincinnati of the filings of conservative groups for added scrutiny was an innocent mistake, said an agency official who apologized. But President Obama's critics see more nefarious motives in the action.