The biggest threat to the US

This probably didn't deserve to be in this particular article, but it did need to be broadcast.

No. 6: James Clapper, director of National Intelligence:“Sometimes people ask me, what keeps you awake at night. I worry about the dysfunction in Washington. That does keep me awake at night.” (Charlie Rose Show, PBS, March 2, 2015)
To quote former Secretary of Defense Bob Gates in 2013, “The biggest threat to our future sits in Washington, D.C., and not someplace else.”