Armed guards at schools? Columbine High had one -- on duty.
The idea that a single armed guard would have prevented Sandy Hook is just wishful thinking, with no historical basis.
http://www.washingtonpost.com/blogs/wonkblog/wp/2012/12/21/security-guards-in-school-scared-students-unclear-effect-on-crime/
"It’s worth noting that Columbine High School had an armed “community resource officer” on duty the day that two students shot 12 of their peers and one teacher. So armed security guards can’t stop every tragedy."
Edit to Add: TheOther95Percent just gave some important links. In the Columbine tragedy, they were investigating whether the on-campus deputy had accidentally killed one of the students.
http://extras.denverpost.com/news/col1123b.htm
The Jefferson County sheriff's deputy who traded gunshots with Eric Harris in the opening moments of the Columbine massacre was not wearing his prescription eyeglasses, according to records unsealed this week.
http://m.rockymountainnews.com/news/2001/nov/10/deputy-fired-into-columbine-library/
Among hundreds of pages of Columbine documents released in recent months were ballistics reports that may spark new questions in a pending lawsuit and may be used to challenge statements made by the first deputy on the scene of the April 20, 1999, tragedy.
At issue are documents showing that Neil Gardner, the Jefferson County sheriff's deputy assigned to Columbine High in 1999, fired three shots into the school's library from his position next to a Chevrolet Blazer in the student parking lot.
The findings contradict both Gardner's statement to investigators and the official report on the Columbine killings. And they are being examined by the family of Daniel Rohrbough, who contend that an as-yet-unnamed deputy -- not gunmen Eric Harris and Dylan Klebold -- killed the boy.
"There's no question that his firing into the library and then telling a different story is very disturbing," said Brian Rohrbough, the boy's father. "I believe the sheriff's department has been running a cover-up since the day the shootings happened, and I don't believe there's any accident or mistake in the amount of misinformation that they've stated in their report."
= new reply since forum marked as read
I teach K-2 and I don't want my coworkers packing heat. We are all human and students can be provocative as well as extremely clever. If an armed guard was there, I wonder what could guarantee they are to be trusted day in and day out. Gives me the creeps. We all suffer trauma and stress in our lifetimes. I hadn't heard this little fact about Columbine. Thanks for sharing! 
and self deleted - didn't want to clog up DU more than it is already.
The only upside to the NRA's "news conference" is that they may have actually shot themselves in the foot.
