A former U.S. Navy research analyst says a missing Malaysian airliner will be found. 

Colleen Keller found French Flight 447 in 2009. She tells CNN's "State of the Union" searchers must cover more ground and look for things like luggage and even bodies. 

The search for Flight 370 has expanded to the Indian Ocean and as far north as central Asia. 

Meanwhile Malaysian authorities say it's likely the plane was steered off course deliberately.