Moscow said Wednesday it should be part of the probe into leaks on the Nord Stream gas pipelines, after Sweden blocked off the area around the pipelines pending an investigation."There should really be an investigation. Naturally, with the participation of Russia," Russian Deputy Foreign Minister Sergei Vershinin said, as quoted by Russian news agencies..... Kremlin spokesperson Dmitry Peskov said such a probe "required the cooperation of several countries."He denounced an "acute shortage of communications and unwillingness of many countries to contact" Russia.....