With the premise 'United 93 and the Shootdown Order On the morning of 9/11, the President and Vice President stayed in contact not by an open line of communication but through a series of calls.', is 'The President and Vice President did use an open line of communication to maintain contact with one and another on the morning of 9/11/' a reasonable conclusion?
United 93 and the Shootdown Order On the morning of 9/11, the President and Vice President stayed in contact not by an open line of communication but through a series of calls.###The President and Vice President did use an open line of communication to maintain contact with one and another on the morning of 9/11/