With little more than three months to go before enrollment opens for health insurance exchanges, a significant minority of Americans doesn't even know that the Affordable Care Act is the law of the land. "People are confused," said Ryan Barker of the Missouri Foundation for Health. "There's a lot of misinformation out there. People are going to need help." A number of campaigns have begun to raise awareness. About 300,000 uninsured people in Missouri will be eligible for subsidies through the exchange, Barker said.