Rising energy costs and advances in technology have given new life to efforts to form an OPEC-like cartel for natural gas. It's probably a long way off, but if it happens, it won't be good for consumers.

Workplace raids have succeeded in scaring off illegal immigrant workers — but that's left many farms and businesses struggling to maintain production levels and Congress struggling to agree on a solution.

Prevnar is an expensive vaccine but effective in preventing deadly diseases such as meningitis, so doctors have been using it despite the high cost. Now evidence that it also cuts pneumonia cases makes its price tag seem even more reasonable.