I cannot get over what Britain asked of RAF radar expert Jack Nissenthall at Dieppe on this day in 1942: go ashore—and accept that his Canadian escort had orders to kill him if capture seemed certain. He volunteered anyway. When German fire kept him out of the radar station, he cut its phone lines, forcing its crew onto radio that British listeners could monitor. I am in awe of that nerve (and of the Canadians beside him). Nissenthall came home but received no gallantry medal. On Dieppe’s 84th anniversary, his name deserves to be known.