A constituent of mine got denied at the border because personal information was taken from their phone that showed they had a prescription for heart medication, and the border official said, “We don't want you coming here and having a heart attack. You can't come in.” I thought this was a strange invasion of one's privacy while seeking to simply be on vacation in another country. That information was then shared with a U.S. health agency.
Another constituent one riding over was denied because they were showing that one of their prescriptions that the officers were able to pull up was a prescription for treating AIDS, and the American border official said they couldn't come in because of that.