“Deceased Boston Marathon bombing suspect Tamerlan Tsarnaev came to the attention of the FBI on at least two occasions prior to a Russian government warning in March 2011 that said he appeared to be radicalizing, FBI Director Robert Mueller said in Congressional testimony this week. The earlier references have led some lawmakers to question whether the FBI acted too quickly in closing an assessment of Tsarnaev’s potential ties to terrorism done in response to the Russian request.”
