NSA and CIA say its bulk surveillance could prevent another 9/11 . Peter Bergen : True cause of 9/11 was n't a failure to have enough sensitive data . He says the Bush administration failed to connect the dots , but they were plentiful . Bergen : U.S. officials often fail to properly analyze or share the data the NSA collects .
NSA and defenders say its bulk surveillance could prevent another 9/11 . Peter Bergen : True story of 9/11 was n't a failure to have enough intelligence data . He says the Bush administration failed to connect the dots , but they were plentiful . Bergen : U.S. officials often fail to properly interpret or share the data the government collects .