National Security Advisor Tom Donilon says Obama has ` ` divided counsel '' on raid . Relying on a ` ` circumstantial evidence , '' the President gave the go - ahead the next morning . He called it `` the single biggest achievement we 've ever had '' in the fight against al Qaeda . Donilon says the amount of evidence gathered is ` ` about the size of a college library '' He says there 's no evidence Pakistani authorities knew that bin Laden was there .
National Security Advisor Tom Donilon says Obama has ` ` divided counsel '' on raid . Relying on a ` ` circumstantial evidence , '' the President gave the go - ahead the next morning . Donilon says the amount of evidence gathered is ` ` about the size of a college library '' He says there 's no evidence Pakistani authorities knew that bin Laden was there .