A new book with the unambiguous title, Heidegger: The Introduction of Nazism into Philosophy in Light of the Unpublished Seminars of 1933-1935 apparently breaks new ground in identifying Heidegger much more strongly with Nazism. In the book the author, “appeals to his readers to recognize ‘the vital necessity of seeing philosophy free itself from the work of Heidegger.’” The author, French philosopher Emmanuel Faye apparently draws his conclusion based on evidence found in scores of material not available to the general public or even many academics.  According to this review in The Christian Century, Faye is unambiguous about his goal to debunk Heidegger and about the moral, social, and religious implications of Heidegger’s work. 
“[Faye] throws down the challenge that Heidegger’s works ought to be removed from the philosophy sections of university libraries and housed, if they are housed at all, in the section on Nazism. This point, more than any other, is likely to outrage critics and discourage people from reading Faye’s book.”