Actually "we" (as the general population in the US) seem to be in much less of a mess than I thought we might be by now. Apparently someone's kept the killers at bay, forcing them to wreak their havoc elsewhere...not that havoc-wreaking in general is acceptable.
Obviously, if they thought they could strike in the US and get away with it, they would. Don't forget the coward component when you consider that thought.
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I was going to get a life, but this was easier.