The G8 summit in Italy

The Libyan leader, Muammar Gaddafi, gestures as he arrives for talks at the G8 summit Photograph: Chris Wattie/Reuters

Gordon Brown meets Muammar Gaddafi on the morning of the third day of the G8 summit Photograph: Oli Scarff/Getty Images

Barack Obama and Nicolas Sarkozy take their places for a photo with junior G8 delegates, including Brazil's Mayora Tavares Photograph: Jason Reed/Reuters

The Brazilian president, Luiz Inacio Lula da Silva, poses with Mayora Tavares and other leaders for a group photograph Photograph: Jason Reed/Reuters

Oxfam supporters wearing masks of G8 leaders demonstrate over health issues Photograph: Luca Ghidoni/Getty Images

Barack Obama receives a Brazilian soccer team t-shirt from Luiz Inacio Lula da Silva during a press conference as G8 leaders announced new climate change initiatives Photograph: Ricardo Stuckert/EPA

Carla Bruni-Sarkozy, wife of the French president, Nicolas Sarkozy, surveys earthquake damage on a visit to L'Aquila Photograph: Philippe Wojazer/Reuters

Silvio Berlusconi speaks with Nicolas Sarkozy before the dinner at the G8 summit Photograph: Massimo Percossi/EPA

Silvio Berlusconi and Barack Obama look at the Palazo del Governo in L'Aquila, which was damaged by an earthquake in April Photograph: Joe Klamar/AFP/Getty Images

Dmitry Medvedev (left) and Silvio Berlusconi visit the church of Santa Maria Di Paganica in L'Aquila Photograph: Vittorio Zunino Celotto/Getty Images

Members of the aid agencies Oxfam and Ucodep, wearing masks of G8 leaders, protest at the Laterano basilica in Rome over global hunger Photograph: Filippo Monteforte/AFP/Getty Images

Jose Manuel Barroso, the president of the European commission, arrives at the main conference on the first day of the G8 summit in L'Aquila Photograph: Ciro Fusco/EPA

Leaders of the G8 group of nations attend a discussion during the summit Photograph: Oli Scarff/Getty Images

The Italian equal opportunities minister, Mara Carfagna, arrives at the Capitoline hill to greet the G8 first ladies Photograph: Franco Origlia/Getty Images

Pope Benedict XVI meets (from left) Margarita Zavala, the wife of the Mexican president, Felipe Calderon; Nompumelelo Mantuli, the wife of the South African president, Jacob Zuma; Gursharan Kaur, the wife of Manmohan Singh, the prime minister of India; Sarah Brown, the wife of the British prime minister, Gordon Brown; Filippa Reinfeldt, the wife of the Swedish prime minster, Fredrik Reinfeldt; Maria Margarita Barroso, the wife of Jose Manuel Barroso; Juliana Olabintan Nwanze, the wife of the International Fund for Agricultural Development president, Kanayo Nwanze; and other first ladies in Vatican City Photograph: Getty Images

Silvio Berlusconi and Angela Merkel visit the village of Onna three months after it was hit by a devastating earthquake Photograph: Markus Schreiber/AP

Canada's prime minister, Stephen Harper, walks past buildings destroyed in the April earthquake in L'Aquila Photograph: Chris Wattie/Reuters

Barack Obama and Silvio Berlusconi approach the stage to pose for a group photo as the Japanese prime minister, Taro Aso, points the way at the G8 summit Photograph: Joe Klamar/AFP/Getty Images

An assistant removes place markers during the G8 leaders group photograph. Left to right: Japan's prime minister, Taro Aso; Canada's prime minister, Stephen Harper; the US president, Barack Obama; France's president, Nicolas Sarkozy; and Italy's prime minister, Silvio Berlusconi Photograph: Jason Reed/Reuters

Silvio Berlusconi (right), shares a word with Nicolas Sarkozy (left) and Dmitry Medvedev prior to a group photo at the G8 summit Photograph: Philippe Wojazer/AP

Silvio Berlusconi leans in to shake hands with Barack Obama after the leaders' group photo Photograph: Jason Reed/Reuters

President Dmitry Medvedev, of Russia, arrives at L'Aquila airport for the G8 summit Photograph: Ria Novosti/Reuters

The prime minister, Gordon Brown, and his wife, Sarah, arrive at Rome airport on their way to the G8 summit in L'Aquila Photograph: Oli Scarff/Getty Images

The US president, Barack Obama, disembarks from Air Force One with his wife, Michelle, at Rome airport Photograph: Saul Loeb/AFP/Getty Images

Cameras are set up at the media centre in L'Aquila on the eve of the summit Photograph: Joe Klamar/AFP/Getty Images

A journalist eats in the media centre canteen on the eve of the summit Photograph: Joe Klamar/AFP/Getty Images

Global Coalition Against Poverty (Italy) activists throw a child's swimming pool bearing a picture of the Italian prime minister, Silvio Berlusconi, into the air in Rome Photograph: Alessandro Bianchi/Reuters

A group of American tourists make their way past a police line barricading the street leading to the US embassy in Rome Photograph: Christopher Furlong/Getty Images

A protester holds a firework at a protest in Rome before the arrival of the G8 leaders in Italy Photograph: Miguel Villagran/Getty Images

Riot policemen enter Termini station in Rome after protesters invaded the tracks and platforms at the end of a demonstration against the G8 summit Photograph: Christophe Simon/AFP/Getty Images

Masked anti-G8 protesters take to the streets near Piazza Barberini in Rome Photograph: Christopher Furlong/Getty Images

A man remonstrates with police as they block the street leading to the US embassy at Piazza Barberini in Rome Photograph: Christopher Furlong/Getty Images

Protesters block the tracks at Termini railway station after a rally through the streets of Rome Photograph: Christopher Furlong/Getty Images

Riot policemen run after protesters on the tracks of Termini station during a protest against the G8 summit Photograph: Christophe Simon/AFP/Getty Images

A protester throws a flare towards Italian riot police during a demonstration in Rome against the G8 summit Photograph: Alessandro Bianchi/Reuters

Demonstrators walk in a fountain on Piazza della Repubblica during a protest in Rome against the summit Photograph: Marco Longari/AFP/Getty Images