They caught the innocent ELVIS impersonator quickly tho

[genlock]

WASHINGTON -- Russian authorities alerted the US government not once but ``multiple’’ times over their concerns about Tamerlan Tsarnaev -- including a second time nearly a year after he was first interviewed by FBI agents in Boston -- raising new questions about whether the FBI should have focused more attention on the suspected Boston Marathon bomber, according to US senators briefed on the probe Tuesday.

The FBI has previously said it interviewed Tsarnaev in early 2011 after it was initially contacted by the Russians. After that review, the FBI has said, it determined he did not pose a threat.