FILE - This Oct. 5, 2012 file photo shows Boston Mayor Tom Menino during a campaign event for Senate candidate Elizabeth Warren in Boston. Menino on Friday, Dec. 21, 2012, responded to

 

              FILE - This Oct. 5, 2012 file photo shows Boston Mayor Tom Menino during a campaign event for Senate candidate Elizabeth Warren in Boston.  Menino on Friday, Dec. 21, 2012, responded to
FILE - This Oct. 5, 2012 file photo shows Boston Mayor Tom Menino during a campaign event for Senate candidate Elizabeth Warren in Boston. Menino on Friday, Dec. 21, 2012, responded to the National Rifle Association's call for armed police and security volunteers to be posted at schools, saying the group's proposal "is not a plan, but a ploy to bring more guns into our neighborhoods," following the Dec. 14 massacre in a Connecticut elementary school. (AP Photo/Josh Reynolds, File)