Which is worse? Killing without consequence cuts both ways. Ultimately we are all humans who can be taken out from above. Pray that the overseers are on your side.
Postscript: Six hours later, the sadly thinkable happened. 120 killed in simultaneous attacks at several locations in Paris, including at a Cambodian restaurant and a death metal concert. I realize that my deep unease at the resumption of drone strikes as front page fodder had another, more short term reason for being.
If you undertake attacks outside of sovereign territory, knowing full well that they will likely cause blowback in the form of domestic terror attacks, are you not just as culpable for those deaths?
The most fitting tribute for this unnecessary loss of life seems Jeff Buckley's 1995 performance of Hallelujah, at the Bataclan.