Could John Holdren be the science advisor referenced in HRC's email?

If not he's a scary guy in general.

Was the senior advisor to President Barack Obama on science and technology issues through his roles as Assistant to the President for Science and Technology, Director of the White House Office of Science and Technology Policy, and Co-Chair of the President’s Council of Advisors on Science and Technology (PCAST)

https:// en.wikipedia.org/wiki/John_Holdren

http:// zombietime.com/john_holdren/