U.S. stocks drop on renewed uncertainty over Europe; Dow has first weekly drop in six

SAN FRANCISCO (MarketWatch)
U.S. stocks closed lower Friday, breaking a string of weekly gains as worries about Greece's future in the euro zone overrode mildly positive U.S. data.
The Dow Jones Industrial Average fell 61.23 points, or 0.5%, to 11,983.24, paring losses in the final minutes of the session.
It lost 2% for the week, its first down week in six.
The S&P 500 lost 7.92 points, or 0.6%, to 1,253.23.
It fell 2.5% for the week, its first down week in five.
The Nasdaq Composite lost 11.82 points, or 0.4%, to 2,686.15.
It fell 1.9% for the week.
The results of the G-20 meeting offered little to allay investor concerns over Greece, where the government faced a confidence vote late Friday.