This month Germany overturned the sentences of tens of thousands of German soldiers convicted of treason during World War II. The move comes late for most of the fighters. The vast majority were executed, died in concentration camps or were killed in so-called death battalions before the war ended. Still exonerating these rebellious ranks has symbolic importance for a country still dealing with its Nazi past. The World's Gerry Hadden met one of Germany's three surviving Nazi traitors and has his story.