"Some European countries have made certain forms of hate speech, like Nazi propaganda and Holocaust denial, a crime. Free speech protections guaranteed in the First Amendment of the U.S. Constitution make it impossible to outlaw hate speech in the United States, however. This impediment presents one of the biggest challenges for those seeking international solutions to the problem of hate speech."However, even with legal issues, it is possible to develop some mechanisms to limit hate speech:
"Experts agree that part of the solution lies in working with businesses that provide access to the Internet or online applications. While the government cannot outlaw hate speech, a company has the right to establish a policy that requires users to abide by stated limits on what can be posted online."
Internet Hate: A Tough Problem to Combat