Dr. Amy Klinger, director of programs and co-founder of the Educator's School Safety Network , a nonprofit that supports safer schools, said she found it "ironic and sad" that the only training being discussed for teachers is weapons training.

"How about training in violence prevention, or all of the other threats that schools face, like severe weather, noncustodial parent fights, and bus accidents?" she asked. "I'm thrilled that the president is having this conversation about school safety. But I'm concerned that we're not looking at the really effective options first."