North Korea has called for Russia's participation in talks on Pyongyang's nuclear problem, generating hopes of overcoming the stalemate. The North Korean Ambassador, Pak Ui Chun, met with the Deputy Russian Foreign Minister, Yuri Fedotov, on Thursday to convey Pyongyang's support for "six-sided talks with the participation of Russia on resolving the current complex situation on the Korean peninsula," the Russian Foreign Ministry said in a statement. The statement also quoted the envoy as saying that Pyongyang "was making active efforts toward their (the talks) realisation." In Washington, a White House spokesman also said the U.S. wanted South Korea, Japan...