As the deadline approaches for most Americans to obtain health insurance, a flurry of changes by the Obama administration has led to a frenzied effort among employers, insurance companies, politicians and consumers to try and understand what they might mean. The latest batch of adjustments came Wednesday, when the administration disclosed that it was delaying, once again, the deadline for people with old private health plans to buy beefed-up versions required under the health-care law. The cancellations of the old plans have been politically damaging for Democrats and the White House, because President Obama had vowed that the law would not prevent people from keeping insurance plans that they liked.
