From WFTV9:

“There are so many questions that haven’t been answered,” said Courtney Joslin, a resident fellow at the R-Street Institute. “There are concerns that we could have a poorly developed program and then you could run to all sorts of issues from data privacy and your health information, to access issues where people (who) do not have access to the vaccine now do not have access to a vaccine passport.”

“One of the most realistic and best case scenarios would be to leave this up to individual businesses, whether they want to require proof of vaccine or not, because then by leaving it up to them that is less infringing on people’s ability to conduct their daily lives,” said Joslin.

Watch here.