 Nick Heinele, WTOP News. They're running through streets, alleys, and if you're unlucky enough, your house too. WTOP's Scott Gellman is reporting on rats. Property managers and city workers are learning how these animals behave and how to keep them away. Go find the rats. Here near George Washington University's campus, groups of D.C. residents and workers are searching parks for holes that rodents may be using to get around.