An excellent suggestion, if I may add.
This probably is not related whatsoever, but bombs seem to be popping up everywhere. This is a Chicago Tribune article about the bomb squad having to blow up a car that was "loaded with explosives"!! This was last night on the southside of Chicago. The White Sox game was also on the southside. I have no idea whatsoever if it was anywhere close.
http://www.chicagotribune.com/news/local/chi-051006bomb,1,4036635.story?coll=chi-newslocal-hed&ctrack=1&cset=true