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.
Journalist Cormac Mac Sweeney shares his experience from the Ottawa shooting and how the shooter might've gotten in.
According to U.S. officials, Michael Zehaf-Bibeau has been identified as the likely suspect in the Ottawa shootings.
Brian Todd reports on what investigators are doing with remains discovered in the search for Hannah Graham.
Authorities stopped three Colorado teenage girls on their way to join ISIS in Iraq and Syria. Pamela Brown reports.
ISIS claims to have captured weapons and supplies from a U.S. airdrop, which was intended for the Kurds fighting ISIS.
Watch CNN's full interview with Matt Olsen during "The Situation Room," airing from 5-7 p.m. ET.
The former head of U.S. counterterror operations said Tuesday the "imminent threat" posed by an al Qaeda offshoot in Syria hasn't lessened after a U.S. air campaign there.
Speaking to CNN's Jim Sciutto, Matt Olsen said by his analysis the threat from the Khorasan group "is still in the same place as it was before" President Barack Obama ordered airstrikes against the terror operation last month. Full story
Nick Paton Walsh speaks to a 15-year-old fighter whose foot was blown off by an ISIS grenade in Kobani.
The New York Times says that Michael Brown's blood was on officer Darren Wilson's car, gun, and uniform. Pamela Brown reports.