NEW YORK - (AP) - Stocks have plunged after more signs of economicweakness triggered a global sell-off. The Dow Jones industrial average is down 419 points, or 3.7percent, to 10,991. The S&P 500 is down 53, or 4.5 percent, to1,141. The Nasdaq composite is down 131, or 5.2 percent, to 2,380. In the United States, there were reports that more people joinedthe unemployment line last week than a week earlier. Gasolineprices contributed to higher inflation. And manufacturing slowed inthe mid-Atlantic. Investors also worried about debt problems inEurope, where bank stocks fell on worries about their access tofunding. The yield on the 10-year Treasury note briefly fell to a recordlow. And gold rose to a record high as investors moved intoinvestments considered safer.