Thanks for the post/links.
'06/'07 signs offer nothing more then probabilistic assurance to homicidial madman that their evil schemes have higher likelihood of "success", by inflicting maximum carnage with no opposition standing in their way.
And I've heard arguments that jihadis will do what they want to do, regardless if there is someone with a gun present, since their mission is to blow themselves up anyway. That's rubbish nonsense.
It is a proven fact, all over the world, that strikes by in large happen in places where there is strictest no-guns allowed policy. This makes logical sense since everyone wants to be as successful as possible, and jihadi murderers are no exception.
Real uncomfortable truth however is that unless we begin to be more proactive in profiling, and unless we temporarily stop the influx of migrants from certain regions of the world in particular, we are libel to get hit again.