
The 140 documents, some of which contain classified information, were released as a result of a lawsuit brought by Judicial Watch, a conservative watchdog organization. Stubbornly referring to Ali by his birth name, Cassius Clay, the law-enforcement agency also monitored Ali's first wife, Sonja Roi Clay, after their 1966 divorce. One memo read, "The Miami (FBI) office is requested to follow the divorce action between Cassius and Sonja Clay with particular emphasis being placed on any NOI (Nation of Islam) implication being brought into this matter."
FBI interest in Ali stemmed from his refusal to enter the US military draft during the Vietnam War, declaring that he had no obligation to fight for a country that discriminated against African-Americans. The precedent for his actions was set by NOI leader Elijah Muhammad, who instructed followers to not participate in US wars, and was himself arrested for draft evasion in 1942. As a result of his protest, Ali was stripped of his world heavyweight title.
Ali joined the NOI in the early 1960s, a controversial move, as the organization called white people "devils" and advocated for a separate nation for blacks so as to escape endemic racism in the US. NOI also claimed that the US was doomed to be destroyed by God for its discriminatory treatment of African-Americans.
The FBI investigated and infiltrated the NOI, as it did most other activist groups, including those allied with the Civil Rights Movement and the Black Panther Party. The agency claimed it had an interest in Ali "from an intelligence standpoint."











