I can't find the page I stumbled on before. I found lots of references to Mr. Koh's views on international law, the transnational legal process, and foreign law's consideration in domestic cases. Anyone can find the serious ones after digging through the blogs and opinion pieces that have popped up lately. It is tough to get to the source documents with just a green belt in google-fu. Most references are lectures, and books that are not readily on the web. Mr Koh was the lead on an amicus brief in Lawrence v Texas where he argued foreign law should be considered in a state sodomy case.
http://www.law.yale.edu/news/4517.htm
http://www.hrw.org/en/news/2003/07/01/lawrence-v-texas
If you want to read the actual brief, knock yourself out. I think those two sources would not mis-represent Mr. Koh.
Besides a 55 min video I could not stand to watch past 6 minutes, the only thing in his words I can find is this paper where he describes the transnational law process as where the distinctions between U.S. and international law disappear.
http://www.law.yale.edu/documents/pdf/Alumni_Affairs/Koh_Why_Transnational_Law_Matters.pdf
Many people are all for that. Obviously, most, if not all, are on the opposite side of the aisle from me. It is clearly not a crack pot philosophy, just very wrong, in my opinion. My problem is figuring out which foreign or international laws should be referenced. Should we consider UK libel laws when a celebutard sues the National Inquirer, or French law? Should the court consider Thai laws or Spanish laws when deciding the constitutionality of drug violation sentencing. I don't live in Spain, or Singapore. I have helped shape our laws by participating in the process. I elect legislators, serve on juries, and voice my opinion on our society's laws to anyone who will listen. Where is the basis for a Frenchman having anything to say about the laws or norms in my country. He doesn't particpate in my government. He has nothing at stake. I would love to see the lawyer that argues in The Netherlands that based on US law Dutch narcotics laws are too permissible. Can you see a French judge even giving a respectful nod to any mention of US law in a French courtroom? It ain't a two way street. Transnationalism in our courts is just another surrender of sovereignty for which we get nothing in return. The U.S. Constitution is the one and only source document in our courts. Once you stray from the word of the Constitution you can find yourself anywhere. A judge's authority does not come from the people, American or Japanese. It comes from the Constitution.