RONALD POPESKI THE U.S. is trying to wreck Russia's planned summit with African countries as part of efforts to isolate Moscow, Foreign Minister Sergei Lavrov said in an interview. Lavrov told the news site Argumenty i Fakty that Moscow was different from Western countries in its relations with Africa in that "we never tell our foreign partners how they are supposed to live. We have no secret agenda." Moscow is preparing for its second summit with African countries, scheduled for the end of July in St. Petersburg, including work on infrastructure, technology and energy projects. "It is true that the…