Spain's Prime Minister Jose Luis Rodrigez Zapatero and Interior Minister Alfredo Perez Rubalcaba leave a vigil for two Civil Guards who were killed in an attack, in Palma de Mallorca July 31, 2009. A bomb placed under a police car killed two officers on the Spanish holiday island of Mallorca on Thursday, in what authorities called the second major attack by the Basque separatist rebel group ETA in two days. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS)