Lien-Hang Nguyen discusses her experience as a historian fact-checker for Columbia News: “How a Columbia Historian Fact-Checked a Film About the Vietnam War.” Lien-Hang Nguyen discusses her experience as a historian fact-checker for Columbia News: “How a Columbia Historian Fact-Checked a Film About the Vietnam War.” Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related