That's a bold and mean lie. Rummy would never say the American people don't deserve to know anything. The clue to the sensible listener is that Rummy had a list of "coulds", not "woulds". Executive decision making, any decision making, is full of could-bes. It's proper not to fill the hyper-reactive news channels with "what-ifs".
Truth is folks can AND SHOULD figure out many what-ifs for themselves. Without waiting for "experts" to tell them.
I guess you didn't watch the interview.