Gun Free zones are an invitation to disaster.  Do you really think that a gun free zone will protect those inside from criminal intent or terrorism?  Will a posted sign stop someone with mal intent from entering and doing harm? As my son says, "When seconds count, the police are only minutes away".  In San Bernadino, the police took FOUR MINUTES to respond...the shooters had time to shoot up the first target, go home, reload, and return.  Gun free zones are an invitation to disaster.  NO GUN BANS!