Donald Rumsfeld:

Churchill’s phrase about the gathering storm - there was a storm gathering, but there were people in Europe who didn’t believe it and who didn’t take the periodic storm clouds and the squalls as a real threat. They thought they were transitory and, of course, paid an enormous penalty in treasure and life for their failure to understand the nature of that threat. I worry we are in a gathering storm and we do not, as a society, accept it. Many of the elites of our society, the key opinion leaders, are unwilling or unable to accept what an awful lot of people believe to be the case. The penalty for being wrong can be enormous.