Brussels, 12/06/2007 (Agence Europe) - The European Parliament and the national parliaments of the 27 member countries of the European Union joined voices in Brussels, on Tuesday, to call for the heads of state and government to safeguard the substance of the Constitutional Treaty during the negotiations of the European Council on 21-22 June on the future treaty of the EU. At the third EP/national parliaments joint parliamentary conference, entitled “The Future of Europe: Together ... but...