Hal with respect you said "Looks like Michigan passed it and sent it to Gov to sign." I am not sure "it" is the same or even close to the program implimented in 2008 in the small town in Texas. I also did not get the impression thinkprogress.org is friendly to the 2nd Ammendment or gun rights.
What the Texas school did was not done in a vacuum. The article I linked to left many details out and there was resistance but they were able to do what they thought in the best interest of the children under their responsibility.
Have a great day!
“Government does few things well but it does them at great expense” Cal Thomas “When Government Can’t Be Trusted” 6/11/2013