FBI interviewing people in U.S. with Russian ties ahead of Sochi Winter Olympics

Terror threats against the Winter Olympic Games have the U.S. military on high alert.

CNN's Evan Perez has just learned that U.S. law enforcements agents have been interviewing people in the U.S. with ties to the Caucusus region in Russia – a hotbed for terror.

The Defense Department has also put in place a contingency plan in case of an attack in Sochi once the games begin less than three weeks from now.

Police warn Sochi hotels of terror suspect as Olympics near

The plan includes up to two warships and several transport aircraft on standby to help evacuate American officials and athletes, if needed.

Russian officials are now handing out flyers in their hunt for at least one woman, a so-called black widow, who may be planning an attack.

On Sunday, an online video surfaced on a Jihadi forum threatening the Games.

Multiple deadly bombings in the region recently have also heightened concern.

OutFront: Former CIA Counter-Terrorism Officer Jeff Beatty.