A small Draganflyer X6 drone on a test flight in Mesa County, Colo. Several police departments around the country are experimenting with using drones, but critics are concerned about potential privacy violations. AP/Mesa County Sheriff's Unmanned Operations Team hide caption

itoggle caption AP/Mesa County Sheriff's Unmanned Operations Team

REI CEO Sally Jewell delivers remarks Wednesday after being nominated by President Obama to be the next secretary of the interior. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

The NRA and some concealed-carry activists say the best defense against gun violence is armed "good guys." Here, a man fires his pistol at an indoor range in Aurora, Colo., last summer. Alex Brandon/AP hide caption

itoggle caption Alex Brandon/AP

Chris Guthrie, vice president for operations at Canna Pi medical dispensary, inspects a medical marijuana product at his clinic in Seattle on Monday. Marijuana will be legal in Washington state from 12:01 a.m. Thursday. Anthony Bolante /Reuters /Landov hide caption

itoggle caption Anthony Bolante /Reuters /Landov

Online privacy advocates are hopeful the FBI investigation into retired Gen. David Petraeus' personal emails will put a human face on their efforts to update a stalled Internet privacy bill. iStockphoto.com hide caption

itoggle caption iStockphoto.com