Dictator's brother fills in at annual rite, rapping US, Bush
                                
                                
                                    (Newser) -
                                    Fidel Castro did not give his usual sermon at Cuba's annual Revolution Day celebration today; instead, his brother Raul took center stage. The no-longer-quite-so-interim leader, who assumed power a year ago because of his brother's health problems, told a cheering crowd that he's willing to negotiate with the US after...