Media Hyped Misleading Gun Control Study. CNN claimed that “the U.S. has the most mass shootings”. The WSJ reported that “U.S. leads the world in mass shootings.” Nearly every major media outlet and former President Obama said the same. But the claim is based on just one study, and the author of that study, Adam Lankford, would not release his data to other gun reseachers in the field. Is he a liar, lazy or just sloppy? You decide. Watch the report to see where the USA REALLY falls on the chart of mass shootings.