[Thor]

lol PZ Meyers says it nicely about the video of the rehearsal.

I suppose I should start including general explanations for the terminally obtuse.
There is no proscription against individual prayer. If 99.9% of the students had taken advantage of the moment of silence to bow their heads and beg Jesus to help them get laid after the kegger that night, NO PROBLEM.
There is a proscription against compelling EVERYONE to participate in sectarian prayer. When someone stands up and announces that we're all going to ask Jesus Christ for a blessing, PROBLEM.
I know you Christians out there have very limited brains and can't quite comprehend this basic concept, but try. Imagine if that woman had gotten up there and announced that she was going to ignore the rules, and asked everyone to turn and face Mecca, get down on their knees, and join in the salah. Would you be cheering then?
Keep it in church. Don't muck up secular, public events that are supposed to be inclusive of everybody, including non-Christians, unless your goal really is to send a message that non-Christians are not part of the community.

http://scienceblogs.com/pharyngula/2..._christian.php