HCR Update from Mark Sanna: Two-thirds of the public are not aware when the new online marketplaces open to allow people without employer coverage to shop and purchase their own health policies, according to a poll by the Kaiser Family Foundation. These exchanges open Tuesday. Despite outreach efforts by the Obama administration and supporters of the law, the poll found the number of uninsured unaware of the opening date is even greater than the public at large, with three out of every four not knowing the marketplaces are supposed to open in October.