First, do no harm. But as New Orleans PI Micky Knight discovers, not every health care provider follows that dictum. She stumbles into a tangle of the true believers to the criminally callous, who use the suffering of others for their twisted ends. In a city slowly rebuilding after Katrina, one of the most devastated areas is health care, and the gaps in service are wide enough for the snake oil salesmen--and the snakes themselves--to crawl through...