Abdullah al-Kidd (right) and his attorney, Lee Gelernt, on Feb 14. Al-Kidd has lost his bid to sue then-Attorney General John Ashcroft for alleged violations of Kidd's rights when he was arrested in 2003. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP

Maricopa County Sheriff Joe Arpaio talks during a news conference before a protest march against the sheriff and his policies on Jan. 16, 2010, in Phoenix. Ross D. Franklin/AP hide caption

itoggle caption Ross D. Franklin/AP

Robert Dixon Sr. holds a photograph of his son, Robert Dixon Jr. (far right), his son's mentor Bob Stuart, and himself (far left). Lianne Milton for NPR hide caption

itoggle caption Lianne Milton for NPR

A selected series of tweets from April 16-17 show what police and Venice311, a neighborhood watch group, say was an effort to organize a flash mob in Venice Beach, Calif. A man was shot near the boardwalk where hundreds of people had gathered. NPR has obscured identifying information for individuals in the tweets. Venice311 hide caption

itoggle caption Venice311

An ultralight aircraft with a basket outfitted for carrying pounds of marijuana crashed into a lettuce field north of San Luis, Ariz., three years ago. The number of ultralights illegally crossing into the U.S. nearly doubled last year. U.S. Border Patrol/AP hide caption

itoggle caption U.S. Border Patrol/AP

The hoodie and sunglasses used by Ted Kaczynski, also known as the Unabomber, are displayed as Kaczynski's personal items are auctioned off online. Proceeds will benefit the victims' families. David Goldman/AP hide caption

itoggle caption David Goldman/AP