Moscow said on Tuesday it had been left with “no other choice” but to cancel talks with the United States about the “New START” nuclear weapons control treaty, Russian state-run news agencies reported. Deputy Foreign Minister Sergei Ryabkov said Washington had only wanted to discuss resuming inspections while Moscow had other priorities. The situation in Ukraine also played a part in Russia’s last-minute decision to scrap the meeting of the bilateral commission, which had been due to begin in Cairo on Tuesday. “By and large, the situation was such that we had no other choice. The decision was …