By Joe Parkinson, Ayla Albayrak and Duncan Mavin in the Wall Street Journal
By Elizabeth Cooney at Harvard Medical School
By the Pew Charitable Trusts on YouTube
By Matt Asay in ReadWrite
By Utibe Effiong and Lauretta Ovadje with Andrew Maynard in the Conversation
The Aspen Institute is an educational and policy studies organization based in Washington, D.C.