background checks mandated and originated at the federal level is the reason why the current system is so ineffectual...for background checks to be really valuable, they need to originate at the local level, move next to the state level and then finally to the federal level...the present system as it is now configured is ass backwards...

and yes, metal detector screening in all public places where mass murders may strike is an obvious, common sense and proven effective means of increasing public security...

keep it simple and keep it safe...