I’ve a clear argument to make about a subject I’ve been reporting on for decades – the United States and Canada are surging ahead in solving hundreds of cases of unidentified bodies, while European countries, which have adopted a more conservative approach to investigative tools, are being left behind. As we recently approached the 25th anniversary of the 9/11 terrorist attacks, one story caught my eye in particular. The moment I read various headlines, I knew how the breakthrough had happened.   “Victim of Twin Towers attack identified” ran the banner on multiple stories about how, a quarter of a century…