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.
Wolf Blitzer speaks to Mark Kelly and Miles O'Brien about the failure of Virgin Galactic's SpaceShipTwo.
An unmanned NASA-contracted rocket exploded moments after its scheduled launch to the International Space Station. Full story
As we near the one-year anniversary of the Sandy Hook shooting, are we any closer to keeping the public and our children in particular safe from gun violence? Mark Kelly - the gun control advocate and husband of Rep. Gabrielle Giffords - and Asa Hutchinson - former Congressman and NRA National School Shield program director - discuss gun control, background checks, and much more.