the scientists , grad students , and interns who 'd gathered in the basement of the nmnh in washington , d.c. , watched the screen in silence as , in baroque regalia befitting his title-his holiness , bishop of rome , vicar of jesus christ , successor of the prince of the apostles , supreme pontiff of the universal church , primate of italy , archbishop and metropolitan of the roman province , sovereign of the vatican city state , servant of the servants of god-the pope stepped forth to greet his magnificent guests .