On Sunday, as I was sitting in my summer cabin in Vermont, completely absorbed in a New York Times story about John Edwards' affair with Rielle Hunter, I began reading a paragraph whose message shot through me like a sudden bolt of electrical current. The story centered on Ms. Hunter's refusal to take a DNA test to determine the paternity of her 5-month-old daughter, but that was not what startled me. It was this: "Ms. Hunter was born in Fort Lauderdale. Fla., in 1964 as Lisa Druck and moved to New York City in her 20s, becoming part of a...