Nevada is under scrutiny after being linked to a Panamanian law firm that helped wealthy clients evade taxes through the creation of secretive corporations.
In at least one case, the Panamanian firm at the center of the scandal appears to have used Nevada's lax business laws to create shell corporations for some of its clients.
Eryn Schornick, with the watchdog group Global Witness, says Nevada's laws make it a magnet for shadier elements.