Yoo, who?

A wise man said:

One of the big mistakes made in the process of developing legal positions following September 11th was that certain lawyers at State and in the military services were excluded from some of the conversations. These are the lawyers most adept at understanding international law, especially the law of armed conflict.

Who was responsible for bypassing them? Who's the administration's go-to guy for legal opinions favoring monarchical power and might-makes-right international relations? Yoo, that's who.