The families of children killed at Sandy Hook Elementary School in Newtown, Conn., in 2012 are suing a conspiracy theorist who claims the massacre was a hoax. Their lawsuits are bringing the issue of \u201cfake news\u201d to the courts. Guest: Elizabeth Williamson, a reporter in the Washington bureau of The New York Times. For more information on today\u2019s episode, visit nytimes.com/thedaily.