The recent conviction of researcher Igor Sutyagin on espionage charges is only the latest in a spate of similar cases in Putin's Russia involving researchers, journalists, diplomats, and former security agents accused of having improper contacts with foreigners. An unidentified spokesman for a Russian secret service told Interfax on 9 April that Western intelligence agencies -- particularly those of the United States -- have stepped up their work against Russia. "Among all the special services involved in intelligence activity against Russia over the last five years, the most active has been U.S. intelligence," the source said. The statement was made...