Analyze if the hypothesis is a logical continuation of the premise. Premise: It is appropriate, therefore, to reconsider whether United 93 would have been intercepted. Hypothesis: The notion that United 93 would have been intercepted should be reconsidered.  
It is appropriate, therefore, to reconsider whether United 93 would have been intercepted.###The notion that United 93 would have been intercepted should be reconsidered.  