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.

Anger can be a useful emotion; it's built into our genetic code to help with self preservation. But it can also be destructive, even when it is justified.

There's this movie, 'Zero Dark Thirty' about the hunt for Osama bin Laden. Some have complained that too many 'secrets' were dished out by the intelligence and special operations communities to director Kathryn Bigelow, screenwriter Mark Boal and their crew, part of a broader pattern of using intelligence for political effect.

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.

When asked if I miss being in government, I usually try to lighten the moment by responding that I awake most days, read the paper, and then observe that, 'It's yet another great day to be the former director of the Central Intelligence Agency.'

The intelligence community is governed by the same legal and ethical standards as the rest of American government and society, but an operational imperative is here, too. An intelligence community charged with global responsibilities cannot be successful without diversity of thought, culture and language.

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.

The arc of technology is in the direction of unbreakable encryption, and no laws are going to get in the way of that reality.