January 14, 2013 7:56 am Teachers Train to Tackle Gunmen Texas teachers receive training on how to disarm a gunman, preparing themselves for the grim reality of workplace and school shootings. Elsa Ramon reports. US & World Videos 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 5:49 Kelly Clarkson hilariously attempts handmade pasta with chef Evan Funke 1:36 O.J. Simpson's cause of death revealed 2:03 Does Shakira still believe in love following Gerard Piqué split?