Inside the European Union, the borders are open, most countries use the same currency, but the constitution is dead on arrival. Following stunning "no" votes in France and the Netherlands, European leaders gather to reconsider the ties that bind.
George Parker, Brussels bureau chief for the Financial Times
Emanuele Ottolenghi, research fellow in Israeli law, politics and society at Oxford University's St. Antony's College and a columnist for Italian newspaper Il Foglio
Simon Hix, professor of political science at the London School of Economics and author of Political System of the European Union