It was the loosiest-goosiest operation I ever saw, a veteran real estate broker says.

Even for the unprotected, those who are exposed can expect 90 percent effectiveness with a course of postexposure prophylaxis that includes hepatitis B immune globulin and initiation of hepatitis B vaccine.

He saw the dilemma. . . . It was a hard nut to crack. He could see no way out of it.

They responded with the same counterpassword that they had been given prior to leaving Puebla.