Former official : FBI uses `` triage '' approach in checking out possible terror links . Comment: The FBI interviewed Tamerlan Tsarnaev before he traveled to Russia last year . Now U.S. investigators need to find out if the Tsarnaevs `` had connections , were they deployed by a bigger group , and are there other terrorists in the United States , '' Fuentes said . Some legislators question why Tsarnaev was n't questioned again on his return .
Former official : FBI uses `` triage '' approach in checking out possible terror links . Comment: The FBI interviewed Tamerlan Tsarnaev before he traveled to Russia last year . Some legislators question why Tsarnaev was n't questioned again on his return .