Border agents may have access to confidential medical records of Canadians which they are using to screen visitors, but it certainly wasn't necessary in this case; a quick Google search turns up that she wrote a book about it, published under her own name: http://ellenrichardson.ca/bio/index.html
Whether we should be denying entry based on this criteria is certainly debatable, but the medical details in question in this case appear to have been made public by Ellen Richardson herself.
There may be a discrepancy with the dates, as the book and BIO obviously reference the initial incident from 2001 but I didn't see anything pre-dating this news about 2012 in 5 minutes of searching. At this point though, there are already grounds for denying entry, and 2001 vs 2012 becomes he-said-she-said.
Border agents may have access to confidential medical records of Canadians which they are using to screen visitors, but it certainly wasn't necessary in this case; a quick Google search turns up that she wrote a book about it, published under her own name: http://ellenrichardson.ca/bio/index.html
Whether we should be denying entry based on this criteria is certainly debatable, but the medical details in question in this case appear to have been made public by Ellen Richardson herself.
There may be a discrepancy with the dates, as the book and BIO obviously reference the initial incident from 2001 but I didn't see anything pre-dating this news about 2012 in 5 minutes of searching. At this point though, there are already grounds for denying entry, and 2001 vs 2012 becomes he-said-she-said.