By Annise Parker* Cities across America are facing a looming crisis caused by a failure to adequately invest in critical infrastructure. The water crisis in Flint was clearly a failure of leadership, but it was equally a failure to maintain a public infrastructure system necessary to sustain life. Ten years ago, we were having a related spasm of national outrage over the New Orleans levees that failed during Katrina. Metropolitan areas are the platform on which 85% of Americans build their …