The Russian mafia is taking over a large part of the world, this search gives an idea of how active they are in America.
http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&client=googlet&biw=796&q=russian+mafia+in+U.S.+&btnG=Search
The interests of the Russian mafia in the US range from the dating industry to ATM cards