Russia, U.S. sign civilian nuclear pact

Russia and the United States signed on Tuesday a long awaited civilian nuclear cooperation pact that will allow firms from the world's two biggest atomic powers to expand bilateral nuclear trade.
The deal will open up the booming U.S. nuclear market and Russia's vast uranium fields to firms from both countries. Without a deal, cooperation potentially worth billions of dollars was severely limited and required official consent.
At the 2006 Group of Eight summit in St Petersburg, U.S. President George W. Bush and Russian President Vladimir Putin blessed the deal but it has faced opposition from some U.S. congressmen because of Russia's cooperation with Iran.

What do you think of this deal? Is it a good idea to sign pacts with a country that has been helping Iran, and seems to be moving back to its cold war communist past?