Take the following as truth: If Jarrah did know that the passengers were making calls, it might not have occurred to him that they were certain to learn what had happened in New York, thereby defeating his attempts at deception.
Then the following statement: "If Jarrah knew passengers were calling, he might not have realized they would hear about the events in New York, or he would have taken all the cell phones." is true, false, or inconclusive?
Answer: False