By KAT STAFFORD, MIKE HOUSEHOLDER and COREY WILLIAMS, Associated Press FLINT, Michigan (AP) — Flint mother Ariana Hawk struggled to find words. Bittersweet came to mind, as did frustrated. “I literally could have cried,” said Hawk, sitting in her car after learning Tuesday that former Michigan Gov. Rick Snyder and others in his administration were expected to be charged in a water crisis blamed with