PHILADELPHIA - You can add rapping to the list of Jodie Foster's talents. The Oscar-winning actress spoke Monday at the University of Pennsylvania's commencement ceremonies, ending her address with the chorus of Eminem's "Lose Yourself" from "8 Mile," the semi-autobiographical 2002 film in which he starred. Foster, who graduated from Ivy League rival Yale University in 1985, received an honorary doctor of arts degree. She earned laughs from the graduates by taking pictures of them from the podium and then by recalling her own years at Yale. But she struck a serious note later, saying the country and world are...