People can start buying insurance on the Affordable Care Act (ACA) marketplace, otherwise referred to as Obamacare or the Federal Health Insurance Exchange, on Wednesday. Last year, 12.2 million people signed up for an ACA health plan through healthcare.gov or their state’s own health website. Given the dysfunction coming from Washington, D.C., consumer activists are concerned that not as many people will sign up for coverage this year. (Pro-ACA groups have ...