**FILE**New Jersey state Sen. Barbara Buono, D-Middlesex, is seen in this file photograph taken Feb. 6, 2007 in Trenton, N.J. On Thursday, Aug. 23, 2007, Buono said classroom doors that lock from the inside would help keep students and teachers safe if an armed intruder was inside a school or college building. Most classrooms doors can be locked from the outside, but not from inside, school officials said. (AP Photo/Mel Evans,file)