waters between malaysia and vietnam, approximately 140 miles from where the plane's transponder went silent. the images were from march 9th, one day after the aircraft went missing. adding to the mystery of the missing airliner, "the wall street journal" reporting that u.s. investigators suspect the flight remained in the air an additional four hours beyond its last confirmed location. malaysian airlines' ceo denies those reports. in beijing, china's premier said his country would not give up on the pursuit any of clues. earlier this week, malaysia's defense minister admitted it could be some time before they are able to answer all the questions. another clue being pursued, the possibility the plane veered way off course. officials here hope the u.s. can help sort out malaysia's military radar records to prove or disprove that theory. it all adds up to agony for the