Wall St. ends down on interest rate, Greece jitters

Wall Street stocks fell on Friday as a better-than-expected U.S. jobs report raised expectations that the Federal Reserve will increase interest rates by midyear, while renewed worries over Greece's debt negotiations added to the bearish tone. In another sign of concern about interest rates, Simon Properties , a real estate investment trust, sank 4 percent at $195.08. The unemployment rate ticked up to 5.7 percent as a result of an increased labor force. After the report, traders added to b