Today's Situation Room:

Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.

Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.

July 25th, 2012
06:47 PM ET

The biggest threat to the U.S.

Wolf Blitzer asks former Rep. Jane Harman and former Homeland Security secretary Michael Chertoff about the future of homeland security and the biggest threats to the U.S.


Filed under: homeland security • Interviews • Jane Harman • Michael Chertoff • Terror