MIAMI (Reuters) - U.S. researchers have unearthed what they say may be the oldest known brewery in the Andes, a pre-Incan plant at least 1,000 years old that could produce drinks for hundreds of people at one sitting. The University of Florida said on Thursday that its archeologists and researchers from the Field Museum in Chicago found the brewery at Cerro Baul, a mountaintop religious center of the Wari empire that ruled what is now Peru hundreds of years before the Incas. At least 20 ceramic, 10- to 15-gallon (38- to 57-litre) vats were found at the site some 8,000...