Fake news has become ubiquitous, and it's more sophisticated and thus harder to spot, say communications experts at the University of Michigan.
In response, they'll offer a free online course on Friday, "Fake News, Facts, and Alternative Facts" on the edX website, which universities use to offer free classes to the public.
Brian Weeks teaches communication studies. He says it's good news that Google and Facebook are launching new tools to help people try to determine if something is true. But he thinks the best strategy is citizen education.