The Dow Jones industrial average closed above 16,000 for the first time last week. Spencer Platt/Getty Images hide caption

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One person who got a letter canceling his health insurance was Rep. Cory Gardner, R-Colo. He holds up the letter during a congressional hearing Wednesday on insurance problems. He says his family chose to buy private insurance rather than use the congressional plan. J. Scott Applewhite/AP hide caption

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Ashley Hentze (left) gets help signing up for the Affordable Care Act from a volunteer in Florida. The government says that 40 percent of the expected enrollees for 2014 must be young and healthy for health insurance premiums to remain affordable. Chris O'Meara/AP hide caption

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Traders work on the floor of the New York Stock Exchange on Wednesday, in New York City. Spencer Platt/Getty Images hide caption

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House Republicans have proposed directing the Treasury Department to pay bondholders first if there is not enough money available to pay all the nation's debts. Carolyn Kaster /AP hide caption

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The specialty grocer Trader Joe's says next year it will end its policy of offering health benefits for part-time workers. Instead, the store will offer part-timers cash to help buy coverage. Bloomberg via Getty Images hide caption

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