Worth Reading: CAFE, Concussions, and Cigarettes

A few of the recent pieces I've liked:

Brad Plumer at Ezra Klein's blog: Will the new fuel economy rules actually work?

Maryn McKenna at Superbug: Is Polio Eradication Slipping Out of Reach?

David Bornstein at the New York Times' Opinionator: Treating the Cause, Not the Illness

John Culhane at Slate: Concussions and Cigarettes ("A new lawsuit claims the NFL is like Big Tobacco. Does the case have merit?")

Zuska at Thus Spake Zuska: Hunger Relief vs. Poverty Relief: I Vote for More of Both