Support WBURMilitary Addresses Double-Edged Sword Of Troops On Social MediaPlay04:06Download AudioTom BowmanMay 21, 2012 ShareAt Forward Operating Base Payne in Afghanistan's Helmand province, Marine Cpl. Jonathan Odriscoll looks at pictures of his sister on Facebook. Troop access to social media has been both a blessing and curse for the military. (AFP/Getty Images)