BUT NOT THIS: The show goes on for President Barack Obama's health care law. Tuesday heralds the debut of health insurance markets across the country, which begin accepting customers for coverage that begins in January. Core elements of the law are an entitlement, like Social Security, so their flow of money does not depend on congressional appropriations. That's why Republicans have been trying explicitly to starve the law of money. An impasse in approving a federal budget has little effect on Obamacare. As for NIH operations, reduced hospital staff at the NIH Clinical Center will care for current patients, and research animals will get their usual care.