European Commission President Jose Manuel Barroso speaks at the 6th European Summit of Regions and Cities in Athens, Greece, March 8, 2014. Barroso is in Athens to attend the summit. (Xinhua/Marios Lolos)

European Commission President Jose Manuel Barroso speaks at the 6th European Summit of Regions and Cities in Athens, Greece, March 8, 2014. Barroso is in Athens to attend the summit. (Xinhua/Marios Lolos)

European Commission President Jose Manuel Barroso speaks at the 6th European Summit of Regions and Cities in Athens, Greece, March 8, 2014. Barroso is in Athens to attend the summit. (Xinhua/Marios Lolos)

European Commission President Jose Manuel Barroso speaks at the 6th European Summit of Regions and Cities in Athens, Greece, March 8, 2014. Barroso is in Athens to attend the summit. (Xinhua/Marios Lolos)