The actions that we take on the counterterrorism front, again, are to take actions against individuals where we believe that the intelligence base is so strong and the nature of the threat is so grave and serious, as well as imminent, that we have no recourse except to take this action that may involve a lethal strike.

As we've seen, deploying large armies abroad won't always be our best offense. Countries typically don't want foreign soldiers in their cities and towns.

I'm neither Republican nor Democrat. I've worked for the past five administrations.

John O. Brennan Quotes