Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Russia Warns Google over Advertising 'Illegal Mass Events' on YouTube RFE/RL Russia's communications regulator, Roskomnadzor, says it has asked Google to take measures to prevent the advertising of "illegal mass events" on its video-hosting site, YouTube. Roskomnadzor said on Sunday that it had sent a letter to Google saying that Russia would consider it interference in its sovereign affairs and a hostile influence should the U.S.-based tech giant fail to respond to the request. The announcement comes a day after tens of thousands of opposition supporters gathered outside Moscow's center for a sanctioned rally demanding fair municipal elections. Hundreds of people later gathered in more central parts of the city, prompting police to detain more than 250 people, according to the independent watchdog OVD-Info. .