The dirtiest words in a liberal’s lexicon — besides “judgmental,” “intolerant,” “unfair,” and “Constitution” — are “revanchism” and “irredentism.” For years, I had no idea what these words actually meant, although like a good red-diaper baby, I threw them around a lot. But to men of a certain age, and I’m talking about men even older than my father, the sainted “Che” Kahane, they’re terms that get our side frothing at the mouth, foaming from their nostrils, and stamping their feet against the imaginary, Stalingrad-like cold of Hallandale, Fla. Recently, I’ve learned — and I researched this directly on Wikipedia,...