Lone suicide bomber, yet
"The Big 12 football conference is tightening security measures around its stadiums. Now I can't help but notice that these new security measures closely follow the suicide of Joel Hinrichs by explosion outside the football stadium in Oklahoma."
Above from www.jihadwatch.org - "New Stadium Security Policies Announced"
Probably to prevent more "suicides." ;)
I saw that - no backpacks of any type allowed, etc... If there was no threat why the updated security? I suppose they could just say it's all in case of copycats, but again why would someone who wants to commit suicide go to all the trouble of making a bomb, especially when it's so dangerous to do so?