Matt Yglesias has the blistering takedown.
On the advice of some readers I picked up Jack Weatherford's Genghis Khan and the Making of the Modern World where I learned that Genghis Khan banned torture in his empire.
So, yes, under George W. Bush the United States of America is regressing to an understanding of humane treatment of people that doesn't reflect the enlightened views of Genghis Khan. That's your feel-good thought of the day.
Now, yes, you can say that Genghis had pragmatic reasons for this and not moral reasons. You can also say that Genghis perpetrated many atrocities in his time. Still, it's pretty sad when the President of the United States of America heartily embraces a practice banned by Genghis Khan.