President Obama's decision to let people keep their existing health insurance policies through 2014, if their health insurance company continues to offer them, could end up costing the federal government money under the so-called risk corridor provision of the Affordable Care Act. -snip- It is too late to change the premiums that have been approved for 2014 to account for changes in the risk pool, says Cori Uccello, senior health fellow with the American Academy of Actuaries. However, under the risk corridor provision, "if insurers' losses exceed a certain percentage, the government will pay part of that loss." -snip- In...