Col. Muhammed Rasoud Qandahari, one of the top Afghan army officers in the Kandahar region, speaks with a young man outside a shura, or community meeting, in Panjwaii, west of Kandahar. U.S. troops are hoping to clear the area of Taliban and let Afghan troops take over. Greg Dixon/NPR hide caption

A woman suffering from cholera symptoms is treated at the St. Nicholas hospital in Saint Marc, Haiti, on Monday. Ramon Espinosa/AP hide caption

A house under foreclosure that is now bank-owned in Las Vegas. Many homeowners facing foreclosure remain skeptical about offers of assistance. Mark Ralston/AFP hide caption

Fred Bartlit Jr., chief investigator of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling, at the public hearing in Washington, D.C., on Monday. J. Scott Applewhite/AP hide caption

Researchers from Yale University found that kids are seeing more fast food ads than ever before. Jonathan Barnes/iStockphoto.com hide caption

Dick Cavett didn't do interviews -- he held conversations. And in the 1960s and '70s, he held conversations with the likes of Katharine Hepburn, John Lennon, Richard Nixon and Groucho Marx. Above, Cavett poses in his New York office in 1978. Carlos Rene Perez/AP hide caption