Biden Picks Former F.D.A. Chief to Lead Federal Vaccine Efforts January 15, 2021 Dr. David Kessler IFTTT NYT +2 NYT > Business NYTimes who helped speed the development and approval of AIDS drugs in the 1990s will become the top science official at Operation Warp Speed. Dr. David Kessler IFTTT NYT NYT > Business NYTimes who helped speed the development and approval of AIDS drugs in the 1990s will become the top science official at Operation Warp Speed.