From The New York Times:
50 Years Later, Remembering King, and the Battles That Outlived Him
In his last years, the Rev. Dr. Martin Luther King was grappling with many issues: workers’ rights, a sprawling protest movement, persistent segregation and poverty. We inherited them all.
https://www.nytimes.com/interactive/2018/04/03/us/mlk-assassination-anniversary.html