MOSCOW, April 23 (RIA Novosti) - Russian Foreign Minister Sergei Lavrov will meet with U.S. Secretary of State Hillary Clinton in Washington on May 7 to discuss the START agreement, which expires at the end of this year. The director of the North American Department at the Foreign Ministry, Igor Neverov, told RIA Novosti on Thursday that the first round of Russian-American expert-level consultations on preparing the new Strategic Arms Reductions Treaty (START) agreement would take place in Rome this week. "There will be a meeting of experts in April, and the experts will continue to work until the minister...