Original sentence: Although covert operations have been employed throughout FBI history, the formal COINTELPRO operations of 1956-1971 were broadly targeted against organizations that were (at the time) considered to have politically radical elements, ranging from those whose stated goal was the overthrow of the U.government (such as the Weathermen), to groups with more limited goals, such as the Southern Christian Leadership Conference, Ku Klux Klan, Black Panther Party, and the American Nazi Party
Edited sentence: 's Southern Christian Leadership Conference; and violent groups like the Ku Klux Klan, Black Panther Party, and the American Nazi Party.Although covert operations have been employed throughout FBI history, the formal COINTELPRO operations of 1956-1971 were broadly targeted against organizations that were (at the time) considered to have politically radical elements, ranging from those whose stated goal was the violent overthrow of the U.government (such as the Weathermen); non-violent civil rights groups such as Martin Luther King Jr