May 17, 2011 9:22 pm What the Tech?: Phone Shut Off Our tech expert responds to a frustrated viewer with cell phone problems. US & World Videos 0:35 Central High's ‘RoboLancers' celebrate worldwide championship 0:21 Instagram, Facebook users report outages 3:03 Group offers free digital literacy workshops for kids, their families 0:29 License plate scanner coming to bridges connecting Pa., NJ 0:51 Tens of thousands of AT&T customers report cellular service outages