 FACT: During the chase of the bullet train, the operator of the  train states that he cannot stop the train as he has no air pressure  for the air brakes. In reality, air brakes work by supplying air to  the brake pistons to keep the brake pads off of the rotor or away  from the drum. When you apply the brakes, air pressure is removed  from the system allowing spring pressure to force the pad to contact  the rotor or drum. This is a fail