Real knowledge is to know the extent of ones ignorance. – Confucius

I do not – I never believed its better to kill a terrorist than to detain him. We want to detain as many terrorists as possible so we can elicit the intelligence from them in the appropriate manner so that we can disrupt follow-on terrorist attacks. – John O. Brennan

Many intelligence reports in war are contradictory even more are false, and most are uncertain. – Karl Von Clausewitz