s ▁un class ified ▁networks . ▁ ▁In ▁August ▁ 2 0 1 3 , ▁U . S . ▁President ▁Bar ack ▁Ob ama ▁said ▁that ▁he ▁had ▁called ▁for ▁a ▁review ▁of ▁U . S . ▁surve ill ance ▁activities ▁even ▁before ▁Snow den ▁had ▁begun ▁reve aling ▁details ▁of ▁the ▁NS A ' s ▁operations . ▁Ob ama ▁announced ▁that ▁he ▁was ▁direct ing ▁D NI ▁Cla pper ▁" to ▁establish ▁a ▁review ▁group ▁on ▁intelligence ▁and ▁communic ations ▁techn ologies " ▁that ▁would ▁brief ▁and ▁later ▁report ▁to ▁the ▁president . ▁In ▁December , ▁the ▁task ▁force ▁issued ▁ 4 6 ▁recommend ations ▁that , ▁if ▁adopted , ▁would ▁subject ▁the ▁NS A ▁to ▁additional ▁scr ut iny ▁by ▁the ▁courts , ▁Congress , ▁and ▁the ▁president , ▁and ▁would ▁strip ▁the ▁NS A ▁of ▁the ▁authority ▁to ▁in fil tr ate ▁American ▁computer ▁systems ▁using ▁" back do ors " ▁in ▁hardware ▁or ▁software . ▁P anel ▁member ▁Geoff rey ▁R . ▁Stone ▁said ▁there ▁was ▁no ▁evidence ▁that ▁the ▁bulk ▁collection ▁of ▁phone ▁data ▁had ▁stopped ▁any ▁terror ▁attacks . ▁ ▁On ▁October ▁ 3 1 , ▁ 2 0 1 3 , ▁U . S . ▁Secretary ▁of ▁State ▁John ▁Ker ry ▁stated ▁that ▁" in ▁some ▁cases " ▁the ▁NS A ▁had ▁" re ached ▁too ▁far " ▁in ▁some ▁of ▁its ▁surve ill ance ▁activities , ▁and ▁promised ▁that ▁it ▁would ▁be ▁stopped . ▁ ▁In ▁January ▁ 2 0 1 4 , ▁James ▁Cla