that needed to be met prior to drone strikes, especially those involving our Military...(CIA strikes, due to their long-term and richer intelligence, were less encumbered).
Here is an excerpt from a interview with an investigative reporter who dealt with this issue...there are other segments of equal value, so your time is well spent reading the whole interview...
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KLAIDMAN: Yeah, that's exactly right. This was three days after Barack Obama took office, only hours before he had signed these executive orders that rolled back some of the - what he viewed as the excesses of the previous administration's counterterrorism policies, Guantanamo, torture, shutting down the CIA detention facilities. And then, on January 23, John Brennan, his chief counterterrorism advisor, came to him and had to give him the news that the very first drone strike of his presidency had gone very badly wrong and a Pakistani tribal elder and much of his family, a pro-peace person, had been wiped out in this drone strike.
And the president was quite troubled by it. He called in the holdover CIA chief, Michael Hayden and his deputy, and he asked him what had happened here. And this was a kind of an important moment for him. Ironically, he ended up embracing the program, and it's also kind of an inflection point in his presidency.
CONAN: And we learn in your article that there are different types of strikes defined by the quality, I guess, of the intelligence that's involved in deciding what's a target and what isn't.
KLAIDMAN: That's exactly right. And this is what the president was learning in that meeting with Michael Hayden. He was learning the difference between a signature strike and a personality strike. And this particular strike was a signature strike in which they know that the people that they're going after have certain signatures or characteristics associated with terrorism, but they don't know exactly who they are. And Steve Kappes, who is the deputy CIA director, said to the president, we know there are a lot of men down there, military-age men, who could be associated with terrorism. We don't know their identities exactly.
The president cut him off and said, well, that's just not good enough for me. But over time, he was persuaded that this was a policy that, in the end, was rather effective, and not only did he accept it, but he ramped up those strikes in Pakistan.
CONAN: And it was a policy, I guess, he once described as kill'em now and sort'em out later.
KLAIDMAN: Well, he was always uncomfortable with it. According to some of his closest advisers, he would squirm. And, in fact, you know, the - his evolution on drones, it's not just a straight line. He would go back and forth and, you know, at times, he would say, I'm just not sure about this. I'm not sure if we're getting people who are genuinely - who are genuine threats to the United States. He was kind of a supple decision-maker when it came to these drone strikes.
There's one sort of instructive anecdote, which you can see him going back and forth. This is in late 2009, and he authorizes strikes against a certain number of members of al-Qaida in Yemen, but then says no to a couple of others. I think because it wasn't clear that they were demonstrable threats against the United States. But then in mid-operation, David Petraeus, who was then the general-in-charge of that area, had a clear - they had a clear shot at one of the individuals that the president had not approved. So John Brennan, the president's chief counterterrorism advisor, and Hoss Cartwright, then the vice chairman of the Joint Chiefs of Staff, had a hurry-up meeting with the president and said, you know, there's an opportunity to go after this person.
Now, you did not approve of this strike, but General Petraeus would like to be able to do this. And the president says, well, is it clear that this is who it is? Do we have the legal authority to do it? And will we - can we ensure that we will not kill civilians, women and children? And the answers were all yes to those questions. And he said, again, this was in mid-execution, OK, we can do it. And so they did. But when these kinds of things happen, the president sometimes would then, in quiet conversations with Cartwright or Brennan, sometimes turn these issues again over in his mind and say, well, you know, God, did we really - was that really an appropriate strike?
How do we know that this particular individual was not involved in a local insurgency or a civil war? So he was wrestling with these issues all the way through. And yet, there is this kind of inexorable momentum toward more violence rather than less, and you can see that sort of trend through his presidency.
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Link: https://www.npr.org/2012/06/06/154443665/how-the-president-decides-to-make-drone-strikes