Russian President Vladimir Putin has a new target in the revived cold war with Washington — the U.S. dollar. The website Russia Today* reported Tuesday that Mr. Putin has drafted a bill to block the use of both the American greenback and the euro in trade between the bloc of countries that used to be part of the Soviet Union, including Russia, Armenia, Belarus, Kazakhstan and Tajikistan. The measure “would help expand the use of national currencies in foreign trade payments and financial services and thus create preconditions for greater liquidity of domestic currency markets,” the Kremlin said in a...