WASHINGTON(Reuters)-Hereissomethingthenation'scriminalsarequicklylearning:There'snopointingettingyourselfalldirtywithgunsanddrugsandthesextradewhenyoucanjustscamtheInternalRevenueService.Thatturnsouttobesurprisinglyeasytodo,inthiseraofhightechnologyandoverloadedIRSworkers.Taxfraudconnectedtoidentitythefthasgrownexponentially,asbadactorsusestolenSocialSecuritynumberstofilefak...