Deer Valley High School principal Ken Gardner, left, and David Kundert, right, the Director of Maintenance and Operations for the Antioch Unified School District, show an opened gate on the campus that they say causes a security problem in Antioch Calif., on Thursday Feb. 14, 2013. Antioch school officials held a study recently to discuss campus safety. By law, the gate needs to stay open all day during school hours. (Dan Rosenstrauch/Staff)