Labor has joined the Maritime Union of Australia in its call for tougher restrictions on ammonium nitrate shipments. Opposition leader Kim Beazley was in Gladstone on September 1 to raise concerns over a Flag of Convenience ship carrying volatile ammonium nitrate on the Australian coast. The Antiguan registered, Ukranian and Bulgarian crewed Pancaldo loaded 3000 tonnes of ammonium nitrate, a potential explosive, in Newcastle earlier in the week after being granted a single voyage permit to trade on the Australian coast. "I am growing more and more concerned about the potential for foreign ships to operate in Australia's coastal waters...