Nearly 2 million people visited the federal health insurance website Monday, the last day to sign up for coverage beginning on Jan. 1, NBC News reported. The web traffic was five times higher than the same period a week ago, a spokesperson for the Centers for Medicare and Medicaid Services said. But for last-minute shoppers, the Obama administration extended Monday's midnight official deadline with a 1-day grace period. The administration likened the decision to allowing those standing in line to vote after polls close. In a symbolic gesture, President Obama signed up for health care on the exchange over the weekend even though he is covered by the military.