Vimy 100 event had a ticket problem — identical barcodes

If you’re going to screen visitors at a high security Canada 150 event, it’s probably not a good idea to give identically coded entry tickets to 25,000 people.
Last April, Veterans Affairs Canada hosted thousands of mostly Canadian visitors to Vimy 100 in France, marking the centennial of the Battle of Vimy Ridge.
Travellers got e-tickets in Canada with personal information such as their name, place of birth and date of birth. There was a bacode to be scanned for entry to Vimy.
But t