Thousands of chemical suits found at Iraqi positions, gas masks abandoned in trenches. The items, strewn across the desert road to Baghdad, could be clues that Saddam Hussein's Republican Guard may be plotting to unleash a deadly chemical strike. Or they could be the precautionary equipment of a well-supplied army battling the world's mightiest military. While the United States believes Iraq has chemical and biological weapons, there is no way to know whether Saddam would unleash them. He didn't during the 1991 Gulf War - when, it is known for certain, he possessed them. ``They know very well that the...