WASHINGTON WATCH: Rep. Bennie Thompson Discusses The Investigation Of The Boston Bombings (VIDEO)

The investigation continues in the case the two men allegedly responsible for the Boston Marathon bombing. The questions about who else was involved and whether Tamerlan Tsarnaev slipped through the fingers of the FBI. Since last week, a lot has been learned. Dzokhar Tsarnaev is in custody and says he and his brother acted alone. [...]