GREECE IS A GREAT PLACE to spend one’s Fourth of July. After all, it is the birthplace of democracy. And there is never any shortage of metaphorical fireworks. The pyrotechnics have been especially volatile over the last week. My wife and I experienced both a near-mutiny at sea and a semi-close brush with a terror attack. The mutiny occurred Saturday, when we set out from Athens to our secret island hideaway in the Saronic Gulf. We took the 5 pm Flying Dolphin hydrofoil from Piraeus. After some time, we noticed that the boat was chugging along at a dead crawl,...