sentences:  One notable example of a prisoner transported on a commercial airliner was that of Christopher Tappin, a Briton extradited to the United States in February 2012 to face American charges of selling arms parts to Iran.Tappin was flown on United Airlines flights from London Heathrow Airport to El Paso, Texas via Houston accompanied, but not handcuffed, by US Marshals at all times.After arriving in El Paso, Tappin was transported to Otero County jail in New Mexico before his first court hearing in El Paso.