After six needles were reported in sandwiches served on Delta flights from Amsterdam, the FBI and Dutch police are investigating an in-flight caterer and potential security gaps as the food was transferred from the caterer's facility at Schiphol airport to the planes, ABC News has learned. The six needles were reported on four separate flights to
three separate cities on Sunday, federal law enforcement officials said. Those officials said that two persons were slightly injured and treated by Emergency Medical Technicians. Delta acknowledged one person was injured, and treated at a hospital.