Hundreds of billions of screaming insects are emerging from the ground throughout the US in a jarring sight that hasn't taken place in 17 years. The long-awaited cicada invasion is here, and the bugs have already been spotted hatching in at least three states: Kentucky, Pennsylvania, and Tennessee. Scientists are also expecting billions more to emerge at any moment in Georgia, Illinois, Indiana, Massachusetts, North Carolina, New Jersey, New York, Ohio, Virginia, and West Virginia. This startling awakening of cicadas is referred to as Brood XIV. The insects last appeared in 2008, and now the next window in their synchronized...