Millions of Americans will get health insurance through the Affordable Care Act that will protect them from potentially ruinous medical expenses, but a new USA TODAY analysis shows the health plans they can choose still leave them vulnerable to thousands in deductibles and other out-of-pocket costs each year. Medical insurance deductibles for plans on the federal exchange covering 34 states average $3,000, and those for the least expensive, bronze-level plans average $5,082, according to the USA TODAY analysis of deductible data for HealthCare.gov. Those costs, according to a recent study, may still be more than many people can afford.