a nearly fatal nerve-agent attack upon opposition leader Alexei Navalny and his subsequent jailing.Senior administration officials did not immediately identify the Russian officials targeted but said some of them had been on a list of prominent business and political figures Navalny had urged the West to sanction.Some opposition figures and their supporters said the latest U.S.
measures, restricting the U.S. travel and banking of some Russian government figures, didn't go far enough to get the attention of Russian President Vladimir Putin.