Fmr. CIA director: Obama shouldn't have taken ground troops off the table

(CNN) – Did you see the trailer-style propaganda video that ISIS released a few days ago, which looked like something out of Hollywood director Michael Bay's worst nightmares?

Turns out it really was a trailer, for a full-length 55-minute video released Friday. Terrorists have really stepped up their production value since the days of Osama bin Laden, emceeing on a microphone in a cave.

And now the nation's No. 1 spy is explaining what the U.S. initially got so wrong about terrorist group ISIS, also known as ISIL.

"What we didn't do was predict the will to fight. That's always a problem. We didn't do it in Vietnam ... n this case, we underestimated ISIL and overestimated the fighting capability of the Iraqi Army ... I didn't see the collapse of the Iraqi security force in the north coming. I didn't see that," The Washington Post quotes director of National Intelligence James Clapper saying.

Former CIA Director, now chairman of the Foundation of Defense of Democracies, James Woolsey joins CNN's "The Lead with Jake Tapper" to discuss.