The Safety Lessons of Columbine, Re-Examined

Ten Years After the High School Shooting, Funding for Campus Security Fades, but Simpler, Low-Cost Measures Gain Favor

By STEPHANIE SIMON
Wall Street Journal

The carnage at Columbine High on April 20, 1999, prompted a swift and aggressive response around the U.S.

Hundreds of millions of dollars flooded into schools after two seniors stalked the halls of Columbine in trench coats, killing 12 students and a teacher before committing suicide in the school library.

The money -- federal, state and local -- bought metal detectors, security cameras and elaborate emergency-response plans. It put 6,300 police officers on campuses and trained students to handle bullying and manage anger.

(More here.)