U.S. concern grows over Americans' safety in Sochi

Members of Congress say they're concerned about the safety of Americans at next month's Olympics in Russia.

They say Moscow needs to cooperate more on security.

Congressman Mike Rogers, chairman of the House Intelligence Committee, says, "We don't seem to be getting all of the information we need to protect our athletes in the games."

Meanwhile, an Islamic militant group in Russia has posted a video threatening to strike the Winter Games.