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.
All this searching for Flight 370 and the flight data recorder could be for nothing - if someone on board the plane sabotaged what's commonly called the "black box." CNN's Athena Jones reports on a troubling new theory.
Search crews are looking for Flight 370 in one of the most remote and treacherous parts of the planet. CNN's Brian Todd reports on the dangerous conditions that may hamper the search.