A few of the recent pieces I've liked:
Vanessa Veselka at The Atlantic: In the Wake of Protest: One Woman's Attempt to Unionize Amazon
Marshall Allen at ProPublica: Without Autopsies, Hospitals Bury Their Mistakes
Maryn McKenna at Superbug: Fecal Transplants: They Work, the Regulations Don't
Jonathan Cohn at The New Republic: Ron Wyden, Paul Ryan, and the Future of Medicare
Shankar Vedantam at NPR: Marriage Economy: 'I Couldn't Afford to Get Divorced'