The signs are everywhere, all over Ireland, but particularly here in Dublin. Some just say "Yes" or "No," but everyone knows what they mean. The newspapers are full of the debate. Both sides battle on the radio and television. For Ireland, it is déjà vu all over again. In June 2008, Irish voters rejected the Lisbon Treaty — which strengthens the foreign policy and military institutions of the European Union — by a clear margin of 53% to 46%. Next month, on October 2, Ireland will go to the polls a second time to vote on largely the same treaty.