WELLINGTON -- New Zealand said on Monday it would send a warship and an air force surveillance plane to join a multinational task force in Middle East waters, but played down any link to possible U.S.-led action against Iraq. A frigate would be sent immediately to join the Canadian-led coalition task group patrolling the Arabian Sea and Gulf of Oman as part of the campaign against the Taleban and Al- Qaeda, Prime Minister Helen Clark told reporters. Early next year a P3 Orion Maritime surveillance plane would join the operation. There was a continuing threat of international terrorism and a...