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.
CNN's Brian Todd reports on al Qaeda's master bombmaker, who could be connected to the latest potential airline threat: shoe bombs.
Sen. Lindsey Graham wants to rethink aid to Afghanistan because of the release of 65 detainees.
CNN's Dan Simon reports on escalating fears about the vulnerability of the nation's power grid after a group of snipers attacked a plant in San Jose, California - and never got caught.
A member of the House Homeland Security Committee, Rep. Peter King, R-New York, explains the latest travel advisory that explosives could be concealed in toothpaste tubes on flights heading to the Winter Olympics in Sochi, Russia.
CNN's Brian Todd compares the Sochi security scene with Munich in 1972 and how the Munich attack changed everything.
CNN's Brian Todd reports on a terror cell that downed an Egyptian helicopter with surface-to-air missiles and how the weapons obtained in Libya are threatening U.S. soldiers.
Russia and the U.S. are investigating whetherÂ Doku Umarov - the terrorist often called Russia's "Osama bin Laden" - will make good on a threat to attack the Winter Olympics in Sochi. CNN's Brian Todd reports.
The Russian government is advising Sochi residents to be on the lookout for possible terror suspects at the Olympics as some U.S. politicians warn Americans to stay away from a Winter Games that they say will be dangerous. CNN's Jim Sciutto reports.
A new report by CNN National Security Analyst Peter Bergen says that the NSA's data collection program hasn't done anything to prevent another 9/11-like terror attack from happening. Bergen and the Foundation for Defense of Democracies president Cliff May sit down with Wolf Blitzer to debate the point.
While President Obama is making reforms to the NSA's data collection programs, a new report says the agency's collection hasn't done anything to prevent another 9/11-like terror attack. CNN's Brianna Keilar reports.