Leiter linked this to his blog: http://www.theguardian.com/books/2014/mar/13/martin-heidegger-black-notebooks-reveal-nazi-ideology-antisemitism
"The philosopher's sympathies for the Nazi regime have been well
documented in the past: Heidegger joined the party in 1933 and remained a
member until the end of the second world war. But antisemitic ideas were previously thought to have tainted his character rather than touched the core of his philosophy – not least by Jewish thinkers such as Hannah Arendt or Jacques Derrida, who cited their debt to Heidegger.
This
week's publication of the "black notebooks" (a kind of philosophical
diary that Heidegger asked to be held back until the end of his complete
work), challenges this view. In France the revelations have been
debated vigorously since passages were leaked to the media last
December, with some Heidegger scholars even trying to stop the
notebooks' publication."
Now will wait for what sorts of discussion this will have.