The Michigan head of one of the nation’s prominent civil rights organizations told the Advance this week that water quality challenges that have affected mid-sized cities such as Flint, Benton Harbor and now Jackson, Miss., are the cause of “white flight and corporate disinvestment.” “There is an overall issue that this country hasn’t been able to come to terms with and that’s making sure that we have strong ecological infrastructure,” said the Rev. Charles Williams II, Michigan chapter chair of the National Action Network.