UCLA shooting renews concerns about classrooms with no locks

LOS ANGELES (AP) — When an active shooter alert spread across the UCLA campus Wednesday, some students found themselves in a frightening predicament: They were told to go into lockdown but couldn’t lock their classroom doors.
Images of students piling tables, chairs and printers against doors on social media sparked alarm and raised questions — yet it was hardly the first time students at a university or school were unable to lock their doors during a shooting.
The same issue a