The authenticity of the Blarney Stone, kissed by about 400,000 tourists a year, has been questioned by Mark Samuel, an archaeologist and architectural historian, and Kate Hamlyn in a new book... the authors say the present stone only came into use in 1888 -- for health and safety reasons. Up until then, those wishing to place their lips on the stone had to be dangled from the castle by two people holding their ankles. Today those wishing to ensure they will never be tongue tied lie on their back and, holding on to an iron railing, lean backwards from the...