Investigators are working to put together a better picture of what happened to Flight 370. So far, there is no sign of the plane and not enough hard information to eliminate many of the theories about what may have happened. Anderson took a look at the latest information with CNN aviation analysts Les Abend and Jim Tilmon, along with Ron Brown, an airline pilot with more than 30 years experience.

One possible explanation of what happened to Flight 370 is a fire forced the pilots to change course while attempting to manage the crisis. That's exactly what happened 15 years ago to Swissair Flight 111. Randi Kaye takes a look back at the lessons learned from that tragedy.

Anderson discussed this with CNN aviation analysts Les Abend and Jim Tilmon, along with Ron Brown, an airline pilot with more than 30 years experience.

Members of the U.S. Navy's Seventh Fleet are in the southern Indian Ocean search for Flight 370 in an area about the size of New Mexico. Commander William Marks is the fleet's spokesman, He told Anderson "I know if this were me and my family, I would want the U.S. Navy out here looking and that's what we are doing."

Anderson discussed the search with David Gallo, who co-led the search for Air France Flight 447, along with retired airline pilot Ron Brown.