Diane Wilson may hail from Texas, but An Unreasonable Woman, which takes the reader from the Gulf Coast to Taiwan and back, is no tall tale. In 1989, Wilson, a shrimper and mother of five, read a newspaper article reporting that her native Calhoun County (pop. 15,000) was the most polluted county in the nation. When she started inquiring about the chemicals being dumped into her beloved San Antonio Bay, getting the cold shoulder from government officials and the polluters only made Wilson more determined.