Footprints in the snow lead to the Capitol in Washington, Tuesday, Dec. 10, 2013. In Washington. Snow was falling at daybreak, but traffic problems failed to materialize as many workers stayed home. Non-emergency federal employees were granted an excused absence and others were told to telecommute, according to the U.S. Office of Personnel Management. (AP Photo/Susan Walsh)

Photo by: Susan Walsh

Footprints in the snow lead to the Capitol in Washington, Tuesday, Dec. 10, 2013. In Washington. Snow was falling at daybreak, but traffic problems failed to materialize as many workers stayed home. Non-emergency federal employees were granted an excused absence and others were told to telecommute, according to the U.S. Office of Personnel Management. (AP Photo/Susan Walsh)