>> reporter: baltimore police are also asking for witnesses to come forward. by the way, five of the six offices have now voluntarily talked to investigators, one has not, and "the baltimore sun" reports tonight that over the past decade two suspects have won court cases against the city for being paralyzed while riding in those police advance. lester? >> tom costello in baltimore, thank you. overseas, a stark reminder of the growing terror threat that hangs over so many european countries. today a highly coordinated series of raids in italy resulted in the arrest of terror suspects in a network that had once plotted an attack on the vatican and even the previous pope himself. nbc's chief foreign correspondent richard engel has the details. >> reporter: the target of terror, reportedly pope benedict himself. a plot to target the vatican, italian prosecutors say, by a major al qaeda-linked cell spanning italy, a cell broken up today with police raids in