Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
Federal authorities are investigating the threat of a 9/11-type attack issued by the hackers allegedly behind the Sony Pictures hack.
Social media played a key role in the hostage situation in Sydney. Tom Foreman reports on the gunman's communication - and what he made hostages do.
CNN's Brian Todd talks with veteran hostage negotiators about the standoff tactics used during the hostage situation in Sydney, Australia.
New York police officials say two cops were assaulted during protests, and they are now looking for six individuals.
Paul Vercammen reports on a ferocious storm triggering mudslides and flooding on the West coast.
Pamela Brown reports on the scandalous e-mails leaked from some of Hollywood's top movie makers.
In an open letter, more than 300 former Obama campaign staffers urged Sen. Elizabeth Warren to run for president.
CNN's Dana Bash reports on the Senate's struggle to pass the spending bill just in time to avert a government shutdown.
CNN's Brian Todd reports on new claims that American forces inadvertently allowed the creation of the terror group ISIS.