Sandy Hook had already implemented this and it did not prevent Adam Lanza from getting in. He knew when the doors wete locked and entered the school shortly before the doors were locked. So, how is this a solution?
I'm starting to come down on the side of arming the teachers. Someone here at FR posted an interesting graphic that showed an armed teacher in Israel and an unarmed teacher in America. In the last 10 years in Israel, there have been 8 students killed at chool. Compare that to 323 American students killed in school in the last 10 years and tell me what works best?
Since Israel has a population of about 8-9 Million, and the US has about 330 million, the comparison of 8 to 323 works out to just about the same rate per capita, so I would not claim that as convincing evidence.
Not trying to start a fight, just looking at the numbers.
Perhaps Israel just doesn’t have those students that want to do these things, like the US has?