This regulation  is dangerous to all who work in a government building.  Recent history has told us that gun free zones are especially opportune targets for extremists to attack.  No one there has the means to prevent the attack.  Every government office needs to have some means to allow the occupants to protect themselves in the interim between the onset of an attack and the arrival of local first responders.  Recent attacks in California and Europe have shown us that the Radical Islamic Terrorists love to attack where resistance is less because they can kill or injure many people without fear of reprisal.  To them, this means more damage inflicted and more publicity.  The second amendment to the Constitution of the United States of America establishes that the right to keep and bear arms shall not be infringed.  Keeping citizens from having the means to ward off attack in any geographic area is a violation of that amendment.  Those of us who have used our right to be armed to help or save ourselves or others know the value of such as a deterrant to the extremists who are now amongst us.