The U.S. trade deficit widened by 3.7% in Dec. to $48.8B, surpassing economists' forecasts of $48.2B, while Nov.'s figures were revised to $47.1B from an initially reported $47.7B. U.S. imports advanced 1.3% to $227.6B in Dec., while exports edged up 0.7% to $178.8B. Meanwhile, Euro zone finance ministers delayed approval of a new debt deal for Greece, demanding that Greek political leaders show fresh proof that they are ready to deliver on past and new pledges to seal a second bailout package. The pending bailout includes a $171B austerity package.