Article Photos: How realistic should school shooting drills be? 5/5

FILE - In this file photo of Jan. 14, 2013, New Washington, Ohio, Chief of Police Scott Robertson checks a teacher's door to make sure it's locked during a lockdown drill at the St. Bernard School in New Washington, Ohio, a month after the Sandy Hook Elementary School massacre in Newtown, Conn., that killed 26 people in December. Inspired by the memories of those who lost their lives, St. Bernard School's principal decided to hold lockdown drills on the 14th of each month to refine a safety plan and increase school security. (AP Photo/Craig Ruttle, File)