March 24, 2011 8:28 am Radiation Badges: Check Your Radiation Exposure Plug it in, click the mouse, and check your exposure to radiation. US & World Videos 3:14 LAPD officers return to USC amid pro-Palestinian protest 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:42 USC students share thoughts on cancelation of main commencement 0:45 Where will the 2025 NFL draft take place? 1:23 NFL draft prospects continuing family legacies