Congressional Budget Office says that costs of the Affordable Care Act will be less than expected

This article by Max Ehrenfreund and Sandhya Somashekhar explains that, according to a new Congressional Budget Office report, the Affordable Care Act is costing taxpayers less than expected because of lower medical spending costs, which in turn will reduce the expected cost of insurance premiums, which in turn will lower the amount the government spends on subsidies for people who cannot fully afford the premiums.