WELL-VERSED AT security protocols at airports, I have to leave behind my vials of Knock Holy Water ® while heading through airport security checkpoints. As fellow believers will affirm, Knock Holy Water has miraculous healing powers, originating in a sacred grotto, plumbed for believers through Irish copper pipes and dispensed at water fountains near the shrine. Even when I have put the water inside plastic bottles shaped like the Baby Madonna (available in all fine Knock gift shops), the security personnel in both Shannon and Dublin airports are nonplussed. I haven't determined whether you can clear through security at Knock on international flights with a belt full of water-filled vials. Anyone know?