They were intercepted in the U.S. by the FBI at a courier company. The swim bladders were bound for New Taipei, smuggled illegally from Mexico. The Taiwan Criminal Investigation also reported the arrest of a 30-year-old man surnamed Yao who they say, was responsible for the attempted smuggling of the illegal fish parts into the country. They say the 161 bladders weighed approximately 19 kilograms and were destined for the black market.