> we have not had a plane blow up into buildings since, so something must be working Yeah, 10 minutes after the event every person on earth now knows the best

> we have not had a plane blow up into buildings since, so something must be working Yeah, 10 minutes after the event every person on earth now knows the best strategy is to rush the cockpit, not sit calmly and wait for the hijackers to ask for a ransom, which was the previous norm. Between that and reinforced concrete doors flying planes into buildings is no longer a viable strategy.