A greater number of voters believe a referendum on the EU constitution should go ahead in the Republic despite its rejection by the French and Dutch people, but more would vote to reject than ratify it, according to the latest Irish Times/TNS mrbi opinion poll, writes Mark Brennock, Chief Political Correspondent. Some 45 per cent believe the referendum should go ahead, 34 per cent that it should not and 21 per cent don't know or have no opinion. Should the referendum proceed, 35 per cent would vote to reject the constitution, 30 per cent to accept it, while 35 per...