MOSCOW, May 6. (RIA Novosti) - U.S. and Russian approaches to the development of democracy on post-Soviet territory may not coincide, but that does not mean they should argue, says Dimitri Simes, an American political expert and president of the Nixon Center, in an interview with Komsomolskaya Pravda, a popular daily. In his opinion, when the U.S. president arrives in Moscow to attend the celebrations marking the end of WWII, the U.S. side will display its "great desire to achieve mutual understanding on a number of issues." The U.S. expert singles out Russian-U.S. interaction on the post-Soviet territory as a...