FBI agents in Boston have yet to provide information about why Tamerlan Tsarnaev was able to move freely in and out of the country after US officials were warned about him or about the May 22 fatal shooting of one of his friends in Orlando, US Representative William R. Keating said on Saturday after returning from a trip to Russia to meet with that country’s top intelligence officials.
Keating said officials with the Russian Federal Security Service provided details about how they warned US Intelligence agents in 2010 that they believed Tsarnaev was preparing to join a terrorist cell in Dagestan.
Addressing reporters at Logan International Airport, Keating said he was impressed with what he saw as the forthcoming nature of the Russian intelligence officials. Meanwhile, he said, FBI officials were absent from Capitol Hill hearings about the bombings. Full story for BostonGlobe.com subscribers.