The cost of providing health coverage to the uninsured will probably be higher than the CBO predicted a year ago, but the net cost will probably be lower than the previous estimate. Calculating the 10-year cost of the Affordable Care Act is difficult because no one knows, for sure, what will remain of the law once the Supreme Court issues its ruling, probably in June, on the legal challenges to the law. No one can predict how Congress will respond with new legislation if the justices invalidate parts of the law, according to a post at MSNBC.com.