Stocks slid at the open today, following yet more negative numbers from retailers and the Labor Department, the Wall Street Journal reports. The Dow dropped 52 points, while the S&P fell 1%. The Nasdaq dropped 1.2%, weighed down by sub-par earnings from Cisco. New jobless claims ripped past the 600,000 mark last week, marking their highest level since 1982, while every retailer save Wal-Mart reported weak same-store sales. (More stock market stories.)