First snakes, now monkeys. An escaped monkey held up a flight at New York's JFK airport for nearly four hours Thursday. There was a lot of monkey business in the cargo hold of the Air China Boeing 747, and Port Authority emergency-services officers and an airport worker had to go looking for the little guy. They caught the animal before it managed to get out of the jet’s cargo hold. But he was only one of about 60 monkeys being shipped to China for medical research.