Malaysian Prime Minister Najib Razak, center, Malaysia's minister for transport Hishamuddin Hussein, left, and director general of the Malaysian Department of Civil Aviation, Azharuddin Abdul Rahman, right, delivers a statement to the media regarding missing Malaysia Airlines jetliner MH370, Saturday, March 15, 2014 in Sepang, Malaysia. Malaysian Prime Minister Najib Razak said Saturday that investigators believe the missing Malaysian airliner's communications were deliberately disabled, that it turned back from its flight to Beijing and flew for more than seven hours. (AP Photo/Wong Maye-E)

Missing Malaysian plane a criminal act?

Malaysia Airlines has stepped up security on all of its aircraft following the disappearance of flight 370. Though, airline officials are no…