While Americans ate corn on the cob and readied themselves for the premiere of the Real Housewives of Beverly Hills yesterday, Europeans took a beating, with stocks plunging. Investors came face-to-face with that turmoil on their return from the holiday weekend, and the results weren't pretty: The Dow opened down 270 points, taking it below the 11,000 mark to 10,970, reports the Wall Street Journal. The S&P 500 and Nasdaq were down 2.6% and 2.3%, respectively. (More Wall Street stories.)