Like a lot of Americans my age, I've lived long enough to see a pattern repeat itself. A crisis erupts, the headlines scream for weeks, politicians make announcements, markets react, and then people convince themselves the danger has passed. Sometimes they're right. Often they're not. The latest talk of a peace agreement involving Iran may bring some short-term relief, particularly in energy markets. If fuel prices ease and economic pressures relax a bit, that's good news for