I've spoken with the head of U.S. Customs—the one responsible for the port in Detroit. They have concerns with the vaccination on the U.S. side at the port of entry. They said they don't deem that to be essential travel into the United States. That's why we've had to work on other creative ways to try to make this happen. That is why we painted the line in middle of the Detroit tunnel.
On June 7th, 2021. See this statement in context.