But there didn’t exist a comprehensive document articulating what the government wants taught about American history until now. “Visitors: Please be advised that the National Museum of American History contains ideologically influenced content. Instead, it views American history as a “prime tool” to advance ideas of social justice and the radical transformation of our society. Warning Visitors About the Ideological Capture at the National Museum of American History. Any telling of American history that centers on a noble story will definitely not be honest.