Frank Engel ia an MEP from Luxemburg and the head of the Luxembourg EPP delegation. He has written three books on European issues the last of which 'Projet de Manifeste pour les États-Unis d'Europe' ('Manifesto for a United States of Europe') published in 2013 spells out his vision about a federal Europe. Frank Engel spoke to Thimis Tsiliopoulos about what a federated Europe would mean for Greece.