What's the cost analysis of successful terrorist attacks? Remember, we're talking cost/benefit here. One verses the other. 9/11 was in the trillions (i.e. prop

What's the cost analysis of successful terrorist attacks? Remember, we're talking cost/benefit here. One verses the other. 9/11 was in the trillions (i.e. property loss, insurance pay outs, market collapses, wars.) The markets this week were dropping in response to Boston, that's on the order of billions. Count all the cancelled events during the week (not talking about Friday's public safety) and people not going out and conducting commerce and you're in the millions. Compare that to the cost of say 20 lives? He had home made bombs on his person the last the police had seen him. His brother had a suicide vest. What if the MBTA was running and he blew up a bus full of souls? Worth $100M? I bet the negative market reaction would have been far greater than that. Still, a crucial flaw in these calculations is that most of the "lost" business will be made up. People will go out and do more than their share of commerce today. There are sandwiches on Friday that won't be sold and floors that were not cleaned, but big ticket items were only demurred and will be serviced, produced, or purchased in due time.