A new video of two men claiming responsibility for two bombings in Russia has US lawmakers concerned about security at the Olympics.
Senator Angus King, who is a member of the senate intelligence committee, told our partners at CNN, he wouldn't go to the games himself, and he doesn't think he would send his family either.
The concerns stem from the December bombings in the city of Volgograd that killed more than 30 people.
In the new video, the men promise a, quote, "present" for visitors to the winter games.
Russia has beefed up security surrounding the event, and president Vladimir Putin has pledged that visitors will be kept safe.