Dr. Mona Hanna-Attisha, a pediatrician at the Hurley Medical Center in Flint, uncovered the extent of the problems caused by lead in the city’s water supply. It’s become one of the most serious environmental challenges in recent memory. Now, she’s written a book about the crisis. On Thursday, September 13 at 6:30 p.m., she’ll discuss the Flint water crisis with U.S. Senator Debbie Stabenow at the East Lansing Public Library. It's open to the public.