Pollan, Bittman et al. opine on desire for national food policy in a Washington Post editorial (I agree with their call to eliminate current farm subsidies, though they don't seem to really understand their effects; the rest is full of platitudes and ill-conceived policies that are unlikely to withstand a serious cost-benefit analysis. It's this kind of writing that led to the Food Police)
USDA approves a new, healthier GMO potato
I was surprised at this statistic: the most recent water withdrawals data show that withdrawals in 2010 were lower than at any time in the past 40 years back to 1970 (not only are we using less water today, but apparently what is used is much more productive - we're getting more from it).