Kraft struggles to market iconic spread
                                
                                
                                    (Newser) -
                                    Say it ain't so: Australians seem to be tiring of a national culinary icon. Vegemite, a spread made from yeast extract, has been beloved since 1923. But lately, owner Kraft has had trouble getting young people hooked on the stuff, the  Wall Street Journal  reports. The company has tried...