Professor Risse tells me that Mr. Roth has accepted the Senior Fellowship.  (Earlier coverage.)  The Dean, in his letter to the faculty, wrote:

In the case of Mr. Roth, I now believe that I made an error in my decision not to appoint him as a Fellow at our Carr Center for Human Rights. I am sorry that the decision inadvertently cast doubt on the mission of the School and our commitment to open debate in ways I had not intended and do not believe to be true. The broader faculty input I have now sought and received has persuaded me that my decision was not the best one for the School. I have spoken now with a colleague at the Carr Center, and we will extend an offer to Mr. Roth to serve as a Fellow. I hope that our community will be able to benefit from his deep experience in a wide range of human rights issues.