The only suggestion that would ACTUALLY WORK is the only suggestion they refuse to listen to.
The absurdity of the Liberal/Left position on this issue will eventually cause its collapse. For those who resist, just sic the tort lawyers on those school systems who fail to implement armed guardians (not necessarily police officers)as part of their on-campus defense and they will see the sense of it soon enough.
Connecticut has already had a $100 million lawsuit filed against it over Newtown. Its all about improving school safety says the lawyer.