Canada says: exercise a high degree of caution due to crime, explosions on the St Petersburg metro on 3 April 2017. Crime against foreigners is a serious problem. Some victims have died. Kidnapping for ransom is also common. Exercise extreme caution in crowds and places frequented by skinhead groups, including open markets. Violent crime is common. Pickpocketing, assaults and robberies occur frequently and are often committed by groups of children and teenagers. Criminals may also pose as police officers, particularly in St. Petersburg.
US State Dept says: High-profile armed robberies are an almost daily occurrence. Criminal gangs collude with the local police and operate with near impunity. Foreigners have become victims of harassment, mistreatment, and extortion by law-enforcement. Anyone entering Russia who has claim to Russian citizen, regardless of any other citizenship held, is fully accountable to the Russian authorities for all obligations of a citizen, including the required military service.
Anyone have personal, recent experiences traveling there from US?