Oct. 29 (UPI) -- Two press advocacy organizations on Tuesday called for the release of British journalist and commentator Sami Hamdi, who was detained by Immigration and Customs Enforcement while on a U.S. speaking tour. The British National Union of Journalists and the Brussels-based International Federation of Journalists both issued statements calling Hamdi's detention a misuse of anti-terror laws and an assault on free speech by U.S. authorities. "The circumstances surrounding his detention