Today's Situation Room:

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.

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.

April 11th, 2014
07:05 PM ET

Searcher: Water can play tricks on ears

Tech teams are working overtime in an attempt to replicate the pings officials believe belong to MH370's black boxes.

April 11th, 2014
07:03 PM ET

MH370 searchers race to duplicate pings

Officials say they're certain the first four pings are from MH370's black boxes as search teams scramble for more clues.