Once obvious targets for an attacks, such as schools (think JCCs, and synagogues, too) appoint visibly armed, well-trained guards, we will undoubtedly be seeing a reduction in the number of massacres perpetrated in American schools and other public places.
But if schools and shuls can’t afford that extra expense, they should at least let their staff who can afford it undergo the proper training.
Jews have an obligation to themselves, their families, and their communities to own guns, and be well-trained in their proper handling, storage and use.
We mustn’t wait until, God forbid, another JCC, synagogue or a yeshiva is targeted by some crazed gunman.