The United States has responded to terror threats at the Olympics by announcing the TSA will ban all carry-on liquids on flights bound for Russia.
With the opening ceremonies commencing Thursday night, officials say the U.S. is now investigating multiple plots against the games.
Officials say the threat stream is credible and the U.S. is standing by, ready to respond if terror strikes the games.
In an interview aired on NBC Thursday, President Obama was asked about the level of cooperation between Russia and the U.S. when it comes to trying to keep these Games safe.
"I think the Russians have an enormous stake, obviously, in preventing any uh, terrorist act or violence at these venues," Obama said. "And they have put a lot of resources into it, we’re in constant communication with them, both at the law enforcement level, at the military level, at the intelligence level. "