Russia's human rights movement was dealt a blow this week when the Moscow city court upheld a lower court's ruling denying official registration to an organization headed by one of the country's most prominent environmentalists. Alexei Yablokov, President Boris Yeltsin's former environmental adviser, said that the denial of official registration for his Advocacy Coalition for the Environment and Human Rights ""must be blamed on the Federal Security Service,"" or FSB. Yablokov said that the FSB, successor to the KGB, ""doesn't want non-governmental human rights organizations to exist"" and ""apparently got sick of human rights advocates who grumble against the FSB, hold press conferences against the FSB and question FSB activities."" In May, Yablokov unsuccessfully appealed to Presnensky district court to overturn a decision by the Moscow city justice department to refuse official registration.