Here's The Drill: Inside A School Lockdown

As recently as a year ago, schools across the country, including the middle school in San Francisco where I used to teach, were toning down security. But since the school shooting in Newtown, school districts across the San Francisco Bay Area are ramping up safety measures. Back in 2008, I never did lockdown drills with my eighth grade students, but now lockdowns are becoming standard across the region.