Clapper, who has been working on intelligence issues for a half-century, is well aware of how jittery many Americans feel about the spy community. The internal debates, he believes, should bolster their confidence that intelligence officials have thoroughly weighed all aspects of some of the world's most difficult security issues before deciding how high a threat they pose.
"I think it'd be very unhealthy - and I get a lot of pushback from people - if I tried to insist that you will have one uniform view and this is what I think, and that's what goes. That just wouldn't work," he said. "There is the fundamental tenet of truth to power, presenting inconvenient truths at inconvenient times. That's part of our system."