Glenn Greenwald talks about the Boston bombings and government secrecy, and two political scholars explain who's to blame for Congressional dysfunction.

Columnist Glenn Greenwald explains what the Boston bombings and U.S. drone attacks have in common, and how secrecy leads to abuse of government power.

Glenn Greenwald tells Bill we need to investigate why so many people are willing to risk lives and liberty to bring violence to America.

Columnist Glenn Greenwald describes how, in the wake of the Boston bombings, people formed opinions about the world and government based on little information.