The answer for Dr. Robert Grant — who is the researcher that found a vaccine for AIDS — is: “I don’t know.”

That’s a deeply disturbing response.

Here is his recent Congressional Testimony (May, 2019)

Here is the NYTimes Audio Podcast, The Daily, interviewing Dr. Grant. The title of this post, and Dr. Grant’s answer to the question, is at the very end of the piece.

I obviously have more thinking to do about the world I live in and about my place in it.