Disaster Relief: Tuesday's earthquake in Haiti was its worst since 1770, leaving the capital in ruins and a death toll that may top 100,000. But help is on its way, and it's America leading the effort. Our tiny tragic neighbor was already in bad shape when the 7.0 earthquake struck the capital of Port-au-Prince. It wasn't just any 7.0 quake, as if that were not bad enough, but a shallow one, meaning it shook harder. Worse still, it hit the most populated area of the country, where 3 million of the country's 9 million citizens live — and left thousands...