A word about the terrorists being called cowards: when you take into consideration their complete certainty that they were going directly to paradise, the statement that they were cowards seems more reasonable. As a thought experiment, imagine that some person was faced with a choice between preventing the violent deaths of some 3000 people, or going directly to a paradise of eternal bliss. If this hypothetical person were to choose the former, I would consider that to be a brave decision. If they were to choose the latter, I would have to go with cowardly (and reprehensible, obviously). Put it this way: in their eyes at least, they were taking the easy way out, at least if my understanding of their radical doctrine is correct.
A word about the terrorists being called cowards: when you take into consideration their complete certainty that they were going directly to paradise, the statement that they were cowards seems more reasonable. As a thought experiment, imagine that some person was faced with a choice between preventing the violent deaths of some 3000 people, or going directly to a paradise of eternal bliss. If this hypothetical person were to choose the former, I would consider that to be a brave decision. If they were to choose the latter, I would have to go with cowardly (and reprehensible, obviously). Put it this way: in their eyes at least, they were taking the easy way out, at least if my understanding of their radical doctrine is correct.