Consider the premise. Does the hypothesis naturally and logically follow? Premise: United 93 crashed in Pennsylvania at 10:03:11, 125 miles from Washington, D.C. Hypothesis: United 93 never crashed and is still flying to this day.  
United 93 crashed in Pennsylvania at 10:03:11, 125 miles from Washington, D.C.###United 93 never crashed and is still flying to this day.  