Stop Online Piracy Act

SOPA (Acronym for Stop Online Piracy Act), also known as H. R. 3261, is a bill currently in the United States House of Represenatives that, if passed, would allow the U.S. Department of Justice and copyright holders to seek court orders against websites accused of copyright infringment and prevent advertisers and payment facilitors such as PayPal from doing business with them.

The problem is that it would also harm the internet's freedom of speech, and possibly also hurt gaming websites and freeware sites that could be wrongly accused of piracy.

Effect on Downfall Parodies
If SOPA is passed, YouTube would most likely be hit hard. Since Downfall parodies could be considered a form of piracy by people with no sense of humor and who won't do anything unless they make money in the end off of it (as was found out when Constantin started blocking them), it is very likely the bill could mean the end of Downfall parodies.