“The Obama administration adopted a strict definition of affordable health insurance on Wednesday that will deny federal financial assistance to millions of Americans with modest incomes who cannot afford family coverage offered by employers. In deciding whether an employer’s health plan is affordable, the Internal Revenue Service said it would look at the cost of coverage only for an individual employee, not for a family. Family coverage might be prohibitively expensive, but federal subsidies would not be available to help buy insurance for children in the family. The policy decision came in a final regulation interpreting ambiguous language in the 2010 health care law.”