James Clapper actually said...
Well, he certainly could be. Again, having some understanding of the leverage that a president can exercise, I worry about, frankly, you know, the access to the nuclear codes. In a fit of peak, he decides to do something about Kim Jong-un, there's actually very little to stop him. The whole system's built to ensure a rapid response if necessary. So there's very little in the way of controls over, you know, exercising a nuclear option, which is pretty damn scary.
Context
Clapper expresses concern about President Trump's potential to misuse nuclear codes.
08/22/2017