Great weight should be given to the judgment of professionals on what information, if disclosed, would harm national security.

When I was at the CIA I asked my civilian advisory board to tackle some tough questions. Among the toughest: In a political culture that every day demands more transparency and more public accountability from every aspect of national life, could American intelligence continue to survive and succeed? That jury is still out.

There is no part of the executive branch that more exists on the outer edge of executive prerogative than the American intelligence community - the intelligence community, CIA, covert action. My literal responsibility as director of CIA with regard to covert action was to inform the Congress - not to seek their approval, to inform.

Intelligence is often viewed as a profession that steals secrets and then knits those secrets together for policymakers in order to inform their judgments.

Peace Corps helps promote global acceptance of the principles of international peace and non-violent co-existence among people of diverse cultures and systems of government.

War is a crucial, deeply ingrained part of human history. It has to be understood.

I wrote somewhere during the Cold War that I sometimes wish the Iron Curtain were much taller than it is, so that you could see whether the development of science with no communication was parallel on the two sides. In this case it certainly wasn't.

Civil strife is as much a greater evil than a concerted war effort as war itself is worse than peace.