CNN CNN Newsroom March 23, 2014 19:09:00
Circumstance. there are mechanical failures that could actually happen so fast that by the time the pilots get to that step, they are unconscious or unable to communicate because of system failures. it is a mystery. >> here we are on sunday afternoon, seven days later into the search and we're still asking questions. more with the rest of you and the panel in just a minute. be sure to stay with us. ♪