 Just before movement of the chemical munitions to Johnston Atoll, the Surgeon General, Public Health Service, reviewed the shipment and the Johnston Atoll storage plans.His recommendations caused the Secretary of Defense in December 1970 to issue instructions suspending missile launches and all non-essential aircraft flights.As a result, Air Micronesia service was immediately discontinued, and missile firings were terminated with the exception of two 1975 satellite launches deemed critical to the island's mission.