The uninsured rate has officially reached a new low in the United States--dipping into the single digits for the first time at 9.1 percent, according to the Centers for Disease Control and Prevention's National Health Interview Survey. The study, which largely mirrors estimates reported in November, finds that 28.6 million people of all ages lacked insurance in 2015, down 7.4 million from 2014. The uninsured rate has fallen considerably from 2011, when government data show it was 15.1 percent. Study