Dear Mr. Rawles, The anniversaries of Katrina and Rita offer us an useful opportunity to reflect upon the lessons of profound adversity. As a Texan and a native of Houston, the disaster and its aftermath have reminded me of three important truths. First, we were all cautioned that the time to leave is well before the mass of people thinks that leaving is reasonable. Second, if you do plan to stick around, plan to be on your own for longer than you expected in conditions more harsh than you anticipated. Third, any mass-casualty disaster is going to let loose a …