We all know now about what is going on in London. The incidents went off at 7am Chicago time. At 6am, my commuter train station had the bomb sniffing dogs walking around, unusual. Also, the plaze between my building and the Chicago Board of Trade was closed off when I walked by at 6:40. This plaza is always open. I just find it strange that these precautions went up about a half hour before the incidents in London.