Strip clubs have also received attention in the Americas outside the United States. There have been several attempts to amend the Canadian Immigration and Refugee Protection Act (IRPA), passed in 2001. The 2009 version of the bill (Bill C-45: An Act to amend the Immigration and Refugee Protection Act) contained provisions intended to tighten the issuing of visas to exotic dancers, to combat human trafficking. In August 2009, the city of Rio de Janeiro, while bidding for the 2014 World Cup, shut down one of its most notorious clubs, the Help discothèque. There were plans to bulldoze the club and "replace it with a music-themed museum" with US firm Diller Scofidio + Renfro as architects, backed by Rio's governor Sergio Cabral who was also backing the 2016 Summer Olympics bid. In November 2009, officials in Rio de Janeiro threatened to sue American comedian Robin Williams for disparaging comments made on a late-night talk show. One of his comments on its Olympics bid, "Rio sent 50 strippers and a pound of blow. It wasn't really fair, you know?" was replayed several times on news shows in Brazil and prompted a public response from its mayor. The Olympic Committee for Rio had its lawyers investigate whether there were grounds for a lawsuit, but no charges were filed.