A Spanish National Police officer stands guard beside a restaurant in the Portixol beachside in Palma de Mallorca August 9, 2009. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW POLITICS) 

A Spanish National Police officer stands guard on the Portixol beachside in Palma de Mallorca August 9, 2009. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN POLITICS CONFLICT) 

Spanish National Police officers stand guard around Plaza Mayor (central square) in downtown Palma de Mallorca August 9, 2009. A small bomb went off in the central square of Palma de Mallorca, Spain on Sunday, taking the number of explosions in the Spanish island to three. The explosions followed a phone warning made in the name of Basque separatist group ETA, the website of Spanish newspaper El Mundo reported. REUTERS/Dani Cardona (SPAIN POLITICS CONFLICT) 

A Spanish Police officer helps a citizen beside a restaurant in the Portixol beachside in Palma de Mallorca August 9, 2009. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN POLITICS CONFLICT) 

A Spanish National Police officer stands guard beside Restaurante La Rigoletta in the Portixol beachside in Palma de Mallorca August 9, 2009. Three small bombs exploded on Sunday in places frequented by tourists in the capital of the island of Mallorca, Spanish government officials said. Sunday's first bomb exploded at Restaurante La Rigoletta in Palma de Mallorca after the restaurant was evacuated following a telephone call made in the name of ETA, El Mundo reported. REUTERS/Dani Cardona (SPAIN POLITICS CONFLICT) 

A local police officer stands guard at the Portixol beachside in Palma de Mallorca August 9, 2009. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW POLITICS) 

Spanish National Police officers stand guard beside on the Portixol beachside in Palma de Mallorca August 9, 2009. In the background is the Palma de Mallorca Cathedral. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN CONFLICT POLITICS) 

Spanish National Police officers stand guard around Plaza Mayor (central square) in downtown Palma de Mallorca August 9, 2009. A small bomb went off in the central square of Palma de Mallorca, Spain on Sunday, taking the number of explosions in the Spanish island to three. The explosions followed a phone warning made in the name of Basque separatist group ETA, the website of Spanish newspaper El Mundo reported. REUTERS/Dani Cardona (SPAIN POLITICS CONFLICT) 

Tourists relax at the beach beside a police line in the Portixol beachside in Palma de Mallorca August 9, 2009. A bomb exploded on Sunday in a beachfront restaurant in the capital of the island of Mallorca, Spanish government officials said, and media reported there had been a phone warning in the name of Basque separatist group ETA. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW POLITICS) 

A Spanish National Police officer gestures beside restaurant "La Rigoletta" in the Portixol beachside in Palma de Mallorca August 9, 2009. A small bomb went off in the central square of Palma de Mallorca, Spain on Sunday, taking the number of explosions in the Spanish island to three. The explosions followed a phone warning made in the name of Basque separatist group ETA, the website of Spanish newspaper El Mundo reported. REUTERS/Dani Cardona (SPAIN MILITARY CONFLICT) 

Civil Guard officers cry after a state funeral service for their two fellow officers, who were killed yesterday in a car bomb blast, in Palma de Mallorca July 31, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW OBITUARY MILITARY) 

Spain's Crown Prince Felipe (L) and his wife Princess Letizia talk with a Civil Guard officer after a state funeral service for the two fellow officers, who were killed yesterday in a car bomb blast, after their state funeral service in Palma de Mallorca July 31, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW OBITUARY ROYALS) 

A Civil Guard officer reacts as he arrives at a cathedral to attend state funeral services for the two fellow officers, who were killed yesterday in a car bomb blast, in Palma de Mallorca July 31, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW OBITUARY) 

Civil Guard officers carry the coffin of one of their two fellow officers who was killed yesterday in a car bomb blast, as they exit the cathedral following their state funeral service in Palma de Mallorca July 31, 2009. A bomb placed under a civil guard 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 CONFLICT CRIME LAW OBITUARY) 

Spain's Crown Prince Felipe (2nd R), his wife Princess Letizia (3rd R), Inaki Urdangarin and Infanta Cristina (C) stand as Civil Guard officers carry the coffin of one of their two fellow officers, who were killed yesterday in a car bomb blast, after their state funeral service in Palma de Mallorca July 31, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW OBITUARY ROYALS) 

Spain's Prime Minister Jose Luis Rodriguez Zapatero (R) places a medal over a coffin during 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. QUALITY FROM SOURCE. FACES OF CIVIL GUARD PERSONNEL MASKED AT SOURCE. REUTERS/Ballesteros/Pool (SPAIN CRIME LAW CONFLICT POLITICS) 

People hold banners that read "No to ETA" as they observe a moment of silence for the killing of two police oficers, outside Madrid´s town hall 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/Susana Vera (SPAIN CONFLICT POLITICS) 

Tourists watch flames from a car after a bomb exploded outside offices run by the Civil Guard paramilitary police in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. A car bomb on the Spanish holiday island of Mallorca killed two police officers on Thursday, just a day after a similar attack blamed on Basque separatists ETA in northern Spain, officials said. Picture taken with a mobile phone. REUTERS/Pablo Navarrete (SPAIN CRIME LAW CONFLICT POLITICS IMAGES OF THE DAY) 

Investigators examine the scene where two Civil Guards were killed in a car bomb blast in Palmanova on the Balearic Island of Mallorca July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Javi Jimenez (SPAIN CRIME LAW CONFLICT POLITICS) 

An investigator stands beside the wreckage of a car in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. At least two people were killed by a car bomb at a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack blamed on Basque separatists ETA in northern Spain. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS IMAGES OF THE DAY) 

Officials cover up the body of one of two Civil Guards who were killed in a car bomb blast in Palmanova on the Balearic Island of Mallorca July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Javi Jimenez (SPAIN CRIME LAW CONFLICT POLITICS) 

Officials transport the body of one of two Civil Guards who were killed in a car bomb blast in Palmanova on the Balearic Island of Mallorca July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Javi Jimenez (SPAIN CRIME LAW CONFLICT POLITICS) 

A Civil Guard mans a roadblock after a second bomb was discovered near the area where a bomb exploded earlier in Palmanova, in the Balearic Island of Mallorca, in what authorities called the second major attack by the Basque separatist group ETA in two days July 30, 2009.Two civil guards were killed by the bomb near a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack on a civil guard barracks in Burgos, northern Spain. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS) 

Investigators gesture beside the wreckage of a car in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. At least two people were killed by a car bomb at a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack blamed on Basque separatists ETA in northern Spain. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS) 

Investigators and firemen stand near the wreckage of a car in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. At least two people were killed by a car bomb at a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack blamed on Basque separatists ETA in northern Spain. REUTERS/Dani Cardona (SPAIN CONFLICT CRIME LAW POLITICS) 

An investigator stands beside the wreckage of a car in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. At least two people were killed by a car bomb at a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack blamed on Basque separatists ETA in northern Spain. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS) 

A Civil Guard mans a roadblock after a second bomb was discovered near the area where a bomb exploded earlier in Palmanova, in the Balearic Island of Mallorca, in what authorities called the second major attack by the Basque separatist group ETA in two days July 30, 2009.Two civil guards were killed by the bomb near a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack on a civil guard barracks in Burgos, northern Spain. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS) 

Spanish Prime Minister Jose Luis Rodriguez Zapatero addresses reporters at the Moncloa Palace in Madrid, hours after two Civil Guards were killed in a car bomb attack in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Juan Medina (SPAIN POLITICS CONFLICT CRIME LAW) 

Spain's Interior Minister Alfredo Perez Rubalcaba (R) walks with Defence Minister Carme Chacon after examining the scene where two Civil Guards were killed in a car bomb blast in Palmanova on the Balearic Island of Mallorca July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS) 

Spanish Prime Minister Jose Luis Rodriguez Zapatero addresses reporters at the Moncloa Palace in Madrid, hours after two Civil Guards were killed in a car bomb attack in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Juan Medina (SPAIN POLITICS CONFLICT CRIME LAW) 

Spain's Interior Minister Alfredo Perez Rubalcaba speaks to reporters after examining the scene where two Civil Guards were killed in a car bomb blast in Palmanova on the Balearic Island of Mallorca July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Dani Cardona (SPAIN CRIME LAW CONFLICT POLITICS IMAGES OF THE DAY) 

Spanish Prime Minister Jose Luis Rodriguez Zapatero addresses reporters at the Moncloa Palace in Madrid, hours after two Civil Guards were killed in a car bomb attack in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. Two Civil Guards died in the blast in what authorities called the second major attack by the Basque separatist group ETA in two days. REUTERS/Juan Medina (SPAIN POLITICS CONFLICT CRIME LAW) 

Tourists watch flames from a car after a bomb exploded outside offices run by the Civil Guard paramilitary police in Palmanova, in the Balearic Island of Mallorca, July 30, 2009. A car bomb on the Spanish holiday island of Mallorca killed two police officers on Thursday, just a day after a similar attack blamed on Basque separatists ETA in northern Spain, officials said. Picture taken with a mobile phone. REUTERS/Pablo Navarrete (SPAIN CRIME LAW CONFLICT POLITICS IMAGES OF THE DAY) 

Handout photo of Spanish Civil Guard Diego Salva Lezaun who died in a car bomb attack in the Balearic Island of Mallorca, in what authorities called the second major attack by the Basque separatist group ETA in two days July 30, 2009. Two civil guards were killed by a bomb near a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack on a civil guard barracks in Burgos, northern Spain. REUTERS/HO/Guardia Civil (SPAIN CRIME LAW CONFLICT POLITICS OBITUARY) 

Handout photo of Spanish Civil Guard Carlos Saenz de Tejada Garcia who died in a car bomb attack in the Balearic Island of Mallorca, in what authorities called the second major attack by the Basque separatist group ETA in two days July 30, 2009. Two civil guards were killed by a bomb near a Civil Guard barracks on the Spanish island of Mallorca, officials said on Thursday, a day after a similar attack on a civil guard barracks in Burgos, northern Spain. REUTERS/HO/Guardia Civil (SPAIN CRIME LAW CONFLICT POLITICS OBITUARY)