Whether he has confessed or is guilty or not, but remember that 22 of the 9/11 attackers were Saudi nationals and all of them were trained in Pakistan. Pakistan should get the signal and act against terror, not militarily alone but ideologically. It will be difficult though, given that the proposal to teach about Hindu kings of Pakistan(Chandragupta, etc.) in histroy texts receives such a fierce debate in Pak parliament. Till not Pak histroy is limited to glorious Islam where miserable Hindus and Hindu kings never existed. Denying one's own roots leads to such radicalization.