Senate Democrats to probe tax rule behind Keurig's Swiss move

By Luc Cohen NEW YORK, Sept 9 (Reuters) - Two Democratic senators said they would examine for the first time a little-known tax exemption that benefits some commodity companies, after Reuters reported that the provision likely prompted coffee roasters to move buying offices overseas. The provision in the U.S. tax code, which tax experts say makes little sense, allows overseas subsidiaries of U.S. companies that trade in certain commodities, including coffee, to keep profits abroad indefi