u.s. lawmaker call congressional committee hold hear legislation would make easy law enforcement identify legal owners shell company curb future abuse rep. carolyn maloney new york democrat make request letter date april 20 house financial service committee chairman jeb hensarling republican texas letter see reuters come weeks international consortium investigative journalists work media outlets include guardian bbc report 11.5 million leak document panama law firm mossack fonseca document contain information 214,000 offshore company show individuals corporations able hide assets avoid tax document come know panama paper maloney write letter data leak also highlight ease criminals corrupt officials use anonymous shell company hide assets law enforcement spokeswoman rep. hensarling respond request comment important remember individuals company blacklist u.s. government anonymous shell company one ways effectively move money around world money often associate corruption drug traffic even terrorist activity maloney say letter february maloney rep. peter king new york republican reintroduce legislation would require u.s. treasury department collect information owners shell company event state already another version bill sponsor senator sheldon whitehouse rhode island democrat would require state identify collect information legal owners company form state laws april 14 letter senate majority leader mitch mcconnell republican kentucky whitehouse also call hear neither maloney whitehouse authority schedule hear early versions circulate congress since least 2008 then-senator carl levin democrat michigan seek crack shell company abuse state liberal incorporation laws state fiercely oppose efforts would require collect identify information call internal revenue service instead among alternatives separately treasury department inch close friday toward finalize rule require bank identify legal owners shell company u.s. lawmaker want hear bill curb shell company abuse