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.
A new round of nuclear talks between Iran and the world's major powers has just begun in Vienna, but many already have low expectations that the meetings will be successful. CNN's Jim Sciutto reports.
As tensions with Iran thaw after last year's historic nuclear deal, Tehran is issuing new threats against the U.S., promising to send warships into American maritime borders and testing new long-range missiles. CNN's Jim Sciutto reports.
CNN's Jim Sciutto sits down with Iran's Foreign Minister to discuss President Obama's State of the Union address.
Tough talk from Iranian leaders contrasts with what the White House says is in the nuclear deal, so why won't the Obama administration release the text to set the record straight? CNN Senior White House Correspondent Jim Acosta reports.
A new spending bill allocated millions of taxpayer dollars to USEC, a troubled fuel company for nuclear power plants.
The Air Force's nuclear arm has faced a number of scandals in the past year or so. CNN's Brian Todd looks at how the tedious nature of the job could have led to the most recent - where officers cheated on a proficiency test.
News that broke in The Situation Room: The Air Force has revealed that nearly three dozen nuclear missile launch officers were caught cheating on a proficiency exam. CNN's Joe Johns reports.
Over a month after the Iran nuclear deal was signed, the requirements will go into effect next week. But U.S. lawmakers are continuing to push for new sanctions, and their efforts may impact how effective the deal is. CNN's Jim Sciutto reports.
Gen. Michael Carey controlled three nuclear arsenal units - until now. Officials say his bad behavior, including heavy drinking, put his delegation at risk. CNN's Brian Todd reports.