It’s late afternoon, and most of the cars are pulling out of the parking lot behind a nondescript office building in Whippany, New Jersey, as I arrive. Our small group has been gathering here since March, so we know the drill. After some quick greetings, we pop our trunks and unload. There are flags, banners, signs, bungee cords, rolls of tape, noisemakers, and, most important of all, letters. A stack of black, 20-by-30-inch foam boards, each bearing a single white letter, has been carefully prearranged to spell out the day’s message.