Cloze1In the 21st century, clouds and stormy weather no longer automatically bring operations to a halt or force a change in targets（目标）. Technologies such as the Global Positioning System now allow cruise missiles（巡航导弹） and other smart weapons to home in on（瞄准并飞速接近） their targets. But the weather still is a factor that must be reckoned with, especially with precision-guided weapons that must be highly accurate （高度精确）to be effective.Fortunately, the ability to obtain weather forecasts will g
