Obama's proposal to allow people to keep canceled health plans for one year could end up costing the government millions of dollars.
This is due to a provision of the Affordable Care Act called risk corridors that allows for insurers to share the cost of insuring more expensive customers.
"The idea of the risk corridor was that insurers that made out real well, whose expenses ended up being much less than revenues would pay into the fund, and then insurers who ended up losing money would collect from the fund," said health law expert and Washington and Lee University law professor Timothy Jost.
"But, apparently, if less money is paid in then is paid out, the Treasury makes up the difference."
http://edition.cnn.com/2013/11/15/politics/obamacare-fix-costs/