Who is Behind Regime Change? “Revolution Business” NGO Supported by Wall Street and US IntelligenceWho is Behind Regime Change? “Revolution Business” NGO Supported by Wall Street and US Intelligence Exposed: Globally Renowned Activist Collaborated with Intelligence Firm Stratfor Serbia’s Srdja Popovic is known by many as a leading architect of regime changes in Eastern Europe and elsewhere since the late-1990s, and as one of the co-founders of Otpor!, the U.S.-funded Serbian activist group which overthrew Slobodan Milošević in 2000.