Bringing us to the question, "how much is a life worth?" I bet the families and friends of those young women were glad to see their tax dollars go to such a tangible cause (buying their freedom, not supporting criminals or terrorists; it's all how you spin it).
I know I'd be pretty unhappy with my government if they didn't try as hard as possible to get our people back alive. Considering how much money has been wasted over the years, 20 mil is a drop in the bucket. I like my fellow citizens to have their heads attached.