It's rare to see me supporting libertarian grumps against conservation rules, but I don't think that forcibly crippling the nation's showerheads is an effective strategy for reducing water consumption.
One of the few moments in my entertainment journalism/internet career that mattered and moved me was an interview I did with Helen Prejean at the time that Dead Man Walking was being released as a film. The Guardian has a good piece about her online right now.
Evidence that diabetes or metabolic syndrome might be reversed by a relatively short dietary course is interesting. Note the knee-jerk reply from the diabetes association. They're so focused on keeping patients behaviorally in line that they have really become dogmatic about the impossibility of a cure. It's pretty sad.