On September 5, 2013 cryptographer and Johns Hopkins university professor Matthew Green posted a blog entitled, "On the NSA", in which he contributed to the ongoing debate regarding the role of NIST and NSA in formulating U.S. cryptography standards. On September 9, 2013 Green received a take-down request for the "On the NSA" blog from interim Dean Andrew Douglas from the Johns Hopkins University Whiting School of Engineering. The request cited concerns that the blog had links to sensitive material. The blog linked to already published news articles from "The Guardian", "The New York Times" and ProPublica.org. Douglas subsequently issued a personal on-line apology to Green. The event raised concern over the future of academic freedom of speech within the cryptologic research community.