Pope Francis led an impassioned mass for tens of thousands of emotional worshippers at a packed Bangkok stadium Thursday, urging respect for prostitutes and trafficking victims in a part of the world where sex work is rampant.The remarks came at the end of a whirlwind day of meetings for Pope Francis, who is on his first trip to Buddhist-majority Thailand where he is carrying a message of religious harmony and peace.He heads to Japan next, visiting the twin atomic bombs sites of Nagasaki and