Academic historians have been more ambivalent in their reaction than movie critics. Eric Foner (Columbia University), a Pulitzer Prize-winning historian of the period, claims in a letter to the New York Times that the movie “grossly exaggerates” its main points about the choices at stake in the passage of the Thirteenth Amendment (November 26, 2012).[59] Kate Masur (Northwestern University) accuses the film of oversimplifying the role of blacks in abolition and dismisses the effort as “an opportunity squandered” in an op-ed for the New York Times (November 12, 2012).[60] Harold Holzer, co-chair of the Abraham Lincoln Bicentennial Foundation and author of more than 40 books, served as a consultant to the film and praises it but also observes that there is “no shortage of small historical bloopers in the movie” in a piece for The Daily Beast (November 22, 2012).[61] Allen Guelzo (Gettysburg College), also writing for The Daily Beast has some plot criticism, but disagrees with Holzer, arguing that, “The pains that have been taken in the name of historical authenticity in this movie are worth hailing just on their own terms” (November 27, 2012).[62] David Stewart, independent historical author, writing for History News Network, describes Spielberg’s work as “reasonably solid history” and tells readers of HNN, “go see it with a clear conscience” (November 20, 2012).[63] Lincoln Biographer Ronald White also admired the film, though he noted a few mistakes and pointed out in an interview with NPR, “Is every word true? No.” (November 23, 2012).[64] Historian Joshua M. Zeitz, writing in The Atlantic, noted some minor mistakes, but concluded "Lincoln is not a perfect film, but it is an important film."[65] Following a screening during the film's opening weekend, the Minnesota Civil War Commemoration Task Force held a panel discussion in which Dr. David Woodard of Concordia University remarked, "I always look at these films to see if a regular person who wasn't a 'Lincoln nut' would want to read a book about it after they watched the movie. I get the impression that most people who are not history buffs will now want to read something about Lincoln."[66]