Local reporters have infiltrated a covert organization that hired young people as “Internet operators” near St. Petersburg and discovered that the employees are being paid to write pro-Kremlin postings and comments on the Internet, smearing opposition leader Alexei Navalny and U.S. politics and culture. [....] According to Lvova, each commenter was to write no less than 100 comments a day, while people in the other room were to write four postings a day, which then went to the other employees whose job was to post them on social networks as widely as possible. Employees at the company, located at 131...