A blind woman shouts slogans in front of the interior ministry during a protest by disable Greeks in Athens May 24, 2012. People with disabilities have not received government welfare payments for two months. A Greek exit from the euro zone could expose the European Central Bank and the currency bloc it seeks to protect to hundreds of billions of euros in losses, landing Germany and its partners with a crippling bill. REUTERS/Yannis Behrakis (GREECE - Tags: CIVIL UNREST BUSINESS)