WASHINGTON: The US Supreme Court is set to explore legal questions arising from the fraught history of US-Cuban relations when it considers the scope of a 1996 law that lets US nationals seek compensation for property confiscated by the communist-led Cuban government. The justices hear arguments on Monday in two cases centered on the federal law called the Helms-Burton Act, one involving US oil major ExxonMobil and the other involving the cruise lines Carnival, Royal Caribbean, Norwegian Cruise Line and MSC Cruises.