Greek Prime Minister Alexis Tsipras speaks with reporters after meeting with eurozone leaders in Brussels on Monday. The leaders reached a tentative agreement on a bailout program that provides cash in exchange for changes in the way the Greek government operates. Geert Vanden Wijngaert/AP hide caption

itoggle caption Geert Vanden Wijngaert/AP

Protestors clash with riot police during a 48-hour general strike in Athens on June 29, 2011. Aris Messinis/AFP/Getty Images hide caption

itoggle caption Aris Messinis/AFP/Getty Images