To circumvent these rules, two "separate" barsone topless and one fully nudemay open adjacent to one another. In a small number of states and jurisdictions where it is legal for alcohol to be consumed but not sold, some clubs still allow customers to bring their own beverages. Still other rules forbid "full nudity" in certain districts, which can vary among different areas within the same town. Some parts of the U.S. have laws forbidding the exposure of female nipples or even areolas, thus requiring female dancers to cover these with pasties. These laws are not, however, known to be applied to the exposure of male nipples. Managers, dancers, and other club workers can be cited or arrested by local or federal authorities for violating nudity, drug, and other violations. In February 2010, the U.S. city of Detroit, Michigan, banned fully exposed breasts in its strip clubs, following the example of Houston, Texas, which began enforcing a similar ordinance in 2008. The Detroit city council has since softened the rules; eliminating the requirement for pasties but keeping other restrictions. Both municipalities were reputed to have suffered rampant occurrences of illicit activities, including prostitution, all linked to striptease establishments within their cities' limits. Detroit has also drawn attention from the federal government for incidents of human trafficking in its strip clubs. In 2010, the state of Missouri passed a law similar to that of Houston and Detroit, banning full nudity in strip clubs across the state. 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