Russia has launched a probe against YouTube for "abusing" its dominant position in the market by making "biased" decisions about comment moderation, a government regulator said on Monday. The Federal Anti-Monopoly Service said in a statement that YouTube's rules relating to the suspension or deletion of accounts are "opaque, biased and unpredictable", leading to the "infringement of the interests of users" and the "restriction of competition". emg/jv