A few of the recent pieces I've liked:
Maryn McKenna at Superbug: The 'NIH Superbug': This is Happening Every Day
Kevin O'Hanlon at the Center for Public Integrity: Privatization fails: Nebraska tries again to reform child welfare
Tara C. Smith at Aetiology: Obstetric fistula as a neglected tropical disease
Dylan Matthews and Ezra Klein at Wonkblog: The true, the false, and the misleading: Grading Paul Ryan's convention speech and A not-very-truthful speech in a not-very-truthful campaign
Abby Goodnough in the New York Times: Sharp Cuts in Dental Coverage for Adults on Medicaid