I remember a 1990-ish visit to a Japanese submarine base and being dumbfounded to see the subs flying the rising sun flag off their stern masts. Dumbfounded, because being, ahem, of a certain age, I associated the flag — a red disc with red and white “beams” extending outward — with the aggressive World War II-era regime that launched a surprise attack on Pearl Harbor in an effort to exercise total dominance over the Pacific. Its use was banned in 1945 following the surrender to the United States and its allies, but many Americans don’t realize that it was re-adopted…