washington michigan governor rick snyder testify house oversight committee hear march 17 flint michigan drink water crisis panel say thursday snyder republican publicly apologize crisis thousands children believe ingest dangerous amount lead city water snyder also say missteps federal environmental protection agency help lead crisis flint predominantly african-american city 100,000 60 miles 100 km northwest detroit direction state-appointed city manager 2014 flint change water supply detroit flint river caustic water help leach lead neurotoxin old pip drink water former city manager darnell earley former midwest epa chief susan hedman also testify committee separate hear march 15. michigan governor snyder testify house hear flint