Drug agents raided 11 pain clinics from Miami to West Palm Beach on Wednesday, arresting 23 people and seizing $2.5 million in cash and dozens of cars in the biggest single strike yet at Florida's pain pill industry. Among those arrested were four physicians, including the son of Broward Medical Examiner Joshua Perper, and five owners of raided pain clinics, officials said. The biggest catch, officials said, was Vincent Colangelo, 42, a Davie man who earned an estimated $150,000 a day from the seven now-shuttered pain centers he owned. Law enforcement agencies moved to seize from the Colangelo operation $22...