FILE - In this Jan. 27, 2015, file photo, a rat crosses a Times Square subway platform in New York. It's a problem practically as old as New York itself, how to handle the untold legions of rodents residing in the city. Last year, the city received more rat-sighting calls than ever before, and officials, led by a city rat scientist, are trying new and innovative ways to control the population, with mixed results. (AP Photo/Richard Drew, File)
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