Among the possibilities Lemon's panel of experts evaluated: that the plane was "stolen" to use in a later terror attack (deemed possible), that the plane was actually in North Korea (not possible) and that pilots could depressurize the plane to cause passengers to pass out (possible).
One Twitter user even asked why CNN anchor Richard Quest filmed a recent story with Malaysia Airlines. Quest said he did fly with the co-pilot of the missing jet -- but ruling out a CNN conspiracy, he said the encounter was "pure coincidence and luck."
Lemon also highlighted some viewer feedback on his Twitter feed that didn't make it to air:
RT @JerseyJenP: @CNN @donlemon the Malaysian govt is either in on this or totally embarrassed by their incompetence. #mh 370 #370Qs
— Don Lemon (@donlemon) March 17, 2014
@donlemon #370Qs @richardquest Could the plane land back
In Malaysia? Turns just to throw search off while they hide?
— Juli (@juliw2010) March 17, 2014
@DonLemon #370Qs Could there have been a fight between pilots that caused the rapid descent / erratic flying?
— Susan El Otmani (@SusanElOtmani) March 17, 2014