I didn’t know about it, but in 1945, a celebrated dogfight occurred over Germany, with an American pilot, James Finnegan, shooting down Germany’s top ace, Gen. Adolf Galland.  Here’s what happened in the air 63 years ago: In an interview Mr. Finnegan gave 12 years ago for a Web site devoted to Galland’s career (members.aol.com/geobat66/galland/galland.htm), [...]