Occupy Boston protesters congregate across the street from the Federal Reserve Bank of Boston.

An onlooker takes a photograph of Occupy Wall Street protesters in New York's Zuccotti Park. The demonstrations were inspired by a blog post by Kalle Lasn, founder of Adbusters magazine.

Shirley Mason was the psychiatric patient whose life was portrayed in the 1973 book Sybil. The book and subsequent film caused an enormous spike in reported cases of multiple personality disorder. Mason later admitted she had faked her multiple personalities.

Brain researchers say the big fluctuations in IQ performance they found in teens were not random — or a fluke.

Janna Beth Hunt, a first-grade teacher at Nashville's Norman Binkley Elementary, is disappointed with how she scored on her first observation under the new system.

Former Massachusetts Gov. Mitt Romney (left) and Texas Gov. Rick Perry got into a heated exchange about immigration during Tuesday's GOP presidential debate in Las Vegas.

Amy Poehler, seen here with Aubrey Plaza as April Ludgate and Chris Pratt as Andy Dwyer, plays idealistic bureaucrat Leslie Knope on NBC's Parks And Recreation.

Afghanistan's Panjwai district, southwest of Kandahar city, was a Taliban stronghold until the U.S. troop surge in 2010 began to displace the insurgents.

Joseph Calleja's voice reminds many of the golden-age tenors of the past.

Libyan leader Moammar Gadhafi, shown in a 2008 file photo, ruled Libya for 42 years. Libya's new leaders say he was killed Thursday in his hometown of Sirte.