20/09/2002 (Agence Europe) - Irish Prime Minister Bertie Ahern said it would be a "disaster" if, during the referendum on 19 October, Ireland did not ratify the Treaty of Nice (see yesterday's EUROPE, p.5). "We would weaken our position in Europe, (…) and I cannot think of one good reason why Irish people would vote no", he told the press. Mary Harney, Deputy Prime Minister, said holding the referendum on a Saturday (virtually a first for Ireland) would allow "the maximum number of people...