Does 'Jarrah, like Atta earlier, may have inadvertently broadcast the message because he did not know how to operate the radio and the intercom.' logically set the stage for the hypothesis 'Jarrah was intimately familiar with, and adept at using the intercom and radio.'
Jarrah, like Atta earlier, may have inadvertently broadcast the message because he did not know how to operate the radio and the intercom.###Jarrah was intimately familiar with, and adept at using the intercom and radio.