Original sentence: The ADL has criticised some groups in the Black-community, notably the Nation of Islam, a black supremacist group.The ADL works to combat racism against all racial groups, including racism against blacks
Edited sentence: However, the ADL contends that it also works to combat racism against all racial groups, including racism against blacks.Some black political and religious leaders have expressed bitterness at what they feel is the ADL's paternalistic atitude toward them.The ADL has attacked many political and religious leaders and organizations in the Black-community that it lables anti-Semitic.The most publicly contentious relationship has been with the Nation of Islam