AUSTRALIAN navy boarding teams have uncovered chilling evidence suggesting Iraqi soldiers may be plotting chemical attacks on shipping around Iraq's key port of Umm Qasr. And it comes as coalition naval forces found what appeared to be an abandoned suicide boat packed with explosives and weapons on the banks of a key waterway near the port on Wednesday. The highly-trained teams have found gas masks and diagrams detailing how to launch an attack from a small ship against a larger vessel. The sketches, gas masks, several army uniforms and a machine gun were found in a secret observation post on...