Threat to U.S. mhhhh...

What is the greatest national security threat facing the United States today? After seeing this video it looks like the Chinese or the Russians. Both of them are trying the hardest to get information about the U.S. and all the secrets. In the video they also said there were many spies in the US trying to do the same things the spy in the car was doing everyday. In conclusion I feel that China and Russia are the biggest threats. Also, why does Steve feel the need to steal and deface my water bottles for no reasons?