For the record, people seem to confuse Islam with Nation of Islam and there is a difference.
Good point, just assumed everyone knew that - but it's not the 1960s anymore. Is Nation of Islam still even around? Nation of Islam was a very militant organization - the Honorable Elijah Muhammed, Malcolm X, etc. I think without much digging it was obvious Elijah Muhammed (those old enough to remember Ali's fights will recall he'd always praise the Honorable Elijah Muhammed immediately after the fight while still in the ring) was basically a fraud and a charlatan. Malcolm X figured that out, left the group - and Elijah put the hit on him that resulted in his death. For all intents it was a militant cult, only vaguely resembling Islam. I presume the cult disbanded and Ali "converted" to traditional Islam, but that's a guess.....
Edit: just checked, it's still around, but only 20,000 - 50,000 members. Has been headed since 1970s by Louis Farrakhan, how could I forget that name!