Western leaders, mistrustful of the intentions of Russia as a supplier of energy, want to ensure that other sources of oil and gas are available. Much of that supply is being sought in countries of the former Soviet Union, and that makes the Russians nervous.A sign of nervousness came last week when Russian leader Vladimir Putin met Iranian President Mahmoud Ahmadinejad and warned the West not to pursue oil pipeline projects in, around, and under the Caspian Sea that are not backed by regional powers.In fact, Putin warned that energy pipeline projects crossing the Caspian could be implemented only if all five nations that border the Caspian support them. He even played the now famous-or i...