Graves Get QR Codes: QR codes, those white and black pixelated images that work like bar codes for smartphone cameras, are being put to good use in Canada. At a cemetery in Bodelwyddan, the codes have been put on 80 graves where more than 17,000 Canadian servicemen and women from World War I are buried. A visitor can scan the code with her phone and get information about how a person died. Most of the Canadians buried there died in the global flu pandemic of 1918 to 1919. But a few graves belong to soldiers who are thought to have died during mutinous riots at the nearby Kinmel Park camp in March 1919. The codes were added as part of a community-based information project called via BBC News