BERLIN — Russian Foreign Minister Sergei Lavrov told the country’s parliament that Moscow will continue adhering to the numerical limits of the expired New START nuclear weapons limitation treaty, provided Washington does the same. Speaking before the State Duma on Feb. 11, he said: “Our stance is that the moratorium declared by the president is still active, but only if the United States does not surpass the established limits.” The statement comes less than a week after the treaty expired on