Police officers turn arriving parents and students away from a closed Edward Roybal High School in Los Angeles, on Tuesday morning, Dec. 15, 2015. All schools in the vast Los Angeles Unified School District, the nation's second largest, have been ordered closed due to an electronic threat Tuesday.
Police officers turn arriving parents and students away from a closed Edward Roybal High School in Los Angeles, on Tuesday morning, Dec. 15, 2015. All schools in the vast Los Angeles Unified School District, the nation's second largest, have been ordered closed due to an electronic threat Tuesday. Richard Vogel AP
Police officers turn arriving parents and students away from a closed Edward Roybal High School in Los Angeles, on Tuesday morning, Dec. 15, 2015. All schools in the vast Los Angeles Unified School District, the nation's second largest, have been ordered closed due to an electronic threat Tuesday. Richard Vogel AP

'Run, hide, fight' policy at school reinforces mass shootings inevitable

December 18, 2015 12:00 AM