Some thoughts about drone strikes and detention

It is high time I sorted out my thinking (and feeling) about U.S. drone killings and other targeted killings of those deemed to be terrorists. It's a duty to myself if no one else. The charge that liberals who were up in arms about Bush's torture and detention policies are unjustifiably silent about Obama's secret and unaccountable killings has some merit in my case, though I have on occasion expressed unease or disapproval of various aspects of Obama's conduct of the ongoing covert war. This will be an essay in the original sense, in that I am figuring out what I think (and recalling what I have thought at various stages) as I go along. The questions: what policies are effective (or likely to cause blowback), what policies are legal (or pose a lasting danger to our civil liberties), what policies are ethical (or likely to save more lives than they take).