U.S. stocks opened mixed Tuesday following comments on interest rates from Federal Reserve Vice Chairman Stanley Fischer. Fischer said the U.S. labor market is quote 'very close to full employment' in an interview with Bloomberg Television. Apple (AAPL) - Get Report shares slipped after the European Union found that Ireland gave the technology giant illegal tax breaks to the tune of $14.5 billion. Abercrombie & Fitch (ANF) - Get Report tumbled 14 percent after the retailer posted an adjusted quarterly loss of $0.25 a share, wider than analysts' expectations, and issued a soft outlook. TheStreet's Scott Gamm reports from Wall Street.