WASHINGTON -- Lawmakers say U.S. law enforcement and other agencies may not have shared enough intelligence about the Boston Marathon bombing suspects in the months before the deadly bombings.
But none of the lawmakers are saying - yet- that better sharing could have stopped the attacks, after FBI officials briefed them on the investigation Tuesday.
The chairwoman and top Republican on the Senate Intelligence Committee - Dianne Feinstein and Saxby Chambliss - say the incident showed there was a lack of sharing of some information, despite intelligence-sharing reforms implemented after the Sept. 11 attacks.
Officials say Homeland Security officials were tracking now-deceased suspect Tamerlan Tsarnaev's trip to Russia last year, for instance, but were not coordinating their suspicions with the FBI. Investigators suspect he may have become radicalized during that journey.