Horst Reichenbach (C), head of the EU taskforce that is helping to rebuild Greece's economy, addresses the audience during an economic conference in Athens July 3, 2012. Greece must prioritize paying out arrears it has racked up with suppliers to get funds flowing again to cash-strapped businesses, Reichenbach said on Tuesday. REUTERS/Yorgos Karahalis (GREECE - Tags: POLITICS BUSINESS)