Mullen leads exercise to assess effects of troop surge
                                
                                
                                    (Newser) -
                                    The chairman of the Joint Chiefs of Staff, Adm. Mike Mullen, led a secret war game earlier this month to assess the Obama administration's options in Afghanistan, including a 44,000-troop surge. A team of military leaders used Gen. Stanley McChrystal's analysis to examine how Taliban insurgents and the Afghan...