This episode's headline: Crisis Summit; Welfare Reform - New Rules; Immigration - New Rules; Dialogue. ANCHOR: JIM LEHRER; GUESTS: MOHAMMED WAHBY, Al-Mussawar, Egypt; DAVID MAKOVSKY, Jerusalem Post; SUSAN PAGE, USA Today; FRANK SHARRY, National Immigration Forum; MARK KIRKORIAN, Center for Immigration Studies; DR. MARCIA ANGELL, Author; CORRESPONDENTS: GABY RADO; CHARLAYNE HUNTER-GAULT; ELIZABETH FARNSWORTH; PAUL SOLMAN; JEFFREY KAYE; MARGARET WARNER; CHARLAYNE HUNTER-GAULT; DAVID GERGEN;