https://apnews.com/aaf896a2c03944fdb6dcf5cfff092c48 > MOSCOW (AP) — Tightening its control over popular anonymous chat apps, the Russian government has approved regulations that would identify users by their cellphone numbers. > The measures signed Tuesday by Prime Minister Dmitry Medvedev are part of Russia's moves to clamp down on smartphone messenger services, such as Telegram, that authorities claim are used by criminals and terrorists.