Free speech is part of the US bill of rights, which was ratified in 1791. It grants the freedom to express any opinion, without any restrictions or penalty from the government. However, there are restrictions to this right, in law. These include speech that incites violence, is part of criminal conduct or commercial advertising. As social media platforms like Facebook and Twitter don't have to enforce freedom of speech, many feel they should.  This week, we hear from Mathew Ingram, chief digital writer for the Columbia Journalism Review, and Dr. Peter Yacobucci, an associate professor of political science at Buffalo State University. With the US presidential election fast approaching, they tell us how social media giants are grappling with freedom of speech. Hosted by Cody Combs.