Muhammad Ali’s son, who bears the boxing great’s name, was detained by immigration officials at a Florida airport and questioned about his ancestry and religion in what amounted to unconstitutional profiling, a family friend said Saturday. Returning from a Black History Month event in Jamaica, Muhammad Ali Jr. and his mother, Khalilah Camacho Ali, were pulled aside and separated from each other on Feb. 7 at the immigration checkpoint at Fort Lauderdale-Hollywood International Airport, said Chris Mancini, a family friend and attorney.