FBI Investigated Anti-Defamation League (ADL) for Espionage

Many Americans were outraged in 1993 after reading mainstream press accounts of a vast national ADL spy network with organelles passing information not only to Israel's Mossad but also Apartheid South African intelligence services—possibly resulting in the mysterious death of Chris Hani and the rushed deportation/detention of many Palestinians. 

Declassified FBI files newly reveal not only the flood of constituent letters pouring into Congress and the FBI's unfulfilled assurances that justice would be served, but the ADL's use of proven tactics that the Israel lobby has deployed since the 1940's to skirt accountability for major criminal violations .... http://irmep.org/adl_espionage.htm