UNESCO special envoy on the Preah Vihear temple Koichiro Matsuura (L) shakes hands with Cambodia's Prime Minister Hun Sen during their meeting in Phnom Penh February 28, 2011. Matsuura arrived in Cambodia for a three-day visit on a mission to calm down tensions between Cambodia and Thailand following deadly border clashes earlier this month, officials said. REUTERS/Samrang Pring (CAMBODIA - Tags: POLITICS) 

Newly-elected UNESCO Director-General Irina Bokova (R) and outgoing Director-General Koichiro Matsuura attend a news conference after the election at UNESCO headquarters in Paris October 15, 2009. REUTERS/Gonzalo Fuentes (FRANCE POLITICS) 

Newly-elected UNESCO Director-General Irina Bokova (L) holds hands with outgoing Director-General Koichiro Matsuura at UNESCO headquarters in Paris October 15, 2009. REUTERS/Gonzalo Fuentes (FRANCE POLITICS) 

Newly-elected UNESCO Director-General Irina Bokova (C) holds hands with outgoing Director-General Koichiro Matsuura (R) and the President of the 35th session of the General Conference Davidson Hepburn attend a news conference after the election at UNESCO headquarters in Paris October 15, 2009. REUTERS/Gonzalo Fuentes (FRANCE POLITICS) 

Newly-elected UNESCO Director-General Irina Bokova (L) shakes hands with outgoing Director-General Koichiro Matsuura during a news conference at UNESCO headquarters in Paris October 15, 2009. REUTERS/Gonzalo Fuentes (FRANCE POLITICS) 

Newly-elected UNESCO Director-General Irina Bokova (C), outgoing Director-General Koichiro Matsuura (R) and the President of the 35th session of the General Conference Davidson Hepburn attend a news conference after the election at UNESCO headquarters in Paris October 15, 2009. REUTERS/Gonzalo Fuentes (FRANCE POLITICS) 

UNESCO Director-General Koichiro Matsuura (R) and Russia's Orthodox Patriarch Kirill (L) meet with President Dmitry Medvedev (not pictured) at the presidential residence Barvikha outside Moscow, July 21, 2009. REUTERS/Alexander Nemenov/Pool (RUSSIA POLITICS RELIGION) 

Russia's President Dmitry Medvedev (L) meets with UNESCO Director-General Koichiro Matsuura (R) at the presidential residence Barvikha outside Moscow, July 21, 2009. REUTERS/Alexander Nemenov/Pool (RUSSIA POLITICS) 

Russia's President Dmitry Medvedev (R) meets with UNESCO Director-General Koichiro Matsuura at the presidential residence Barvikha outside Moscow, July 21, 2009. REUTERS/Alexander Nemenov/Pool (RUSSIA POLITICS) 

Heads of state of South-East Europe pose for photographers before their summit meeting in Cetinje June 4, 2009. Heads of state of South-East Europe are meeting at the summit entitled ?Management of Heritage Diversity and Its Promotion for Tourism? in cooperation with UNESCO and Council of Europe. From L-R: Bulgaria's President Georgi Parvanov, Albania's President Bamir Topi, Turkey's State Minister Mehmet Aydin, UNESCO Director-General Koichiro Matsuura, Serbia's President Boris Tadic, Montenegro's President Filip Vujanovic, Macedonia's President Gjorge Ivanov, Secretary General of the Council of Europe Terry Davis, Slovenia's President Danilo Turk, President of the Bosnia-Herzegovina's presidency Nebojsa Radmanovic, Romania's Minister of Culture Theodor Paleologu and Croatia's President Stipe Mesic. REUTERS/Stevo Vasiljevic (MONTENEGRO POLITICS) 

Director General of UNESCO Koichiro Matsuura (R) leaves a school after giving books to the school's headmaster in Old Havana January 19, 2009. Matsuura is in Cuba on an official visit. REUTERS/Claudia Daut (CUBA) 

Director General of UNESCO Koichiro Matsuura (R) looks on as school children paint at a school in Old Havana January 19, 2009. Koichiro Matsuura is in Cuba on an official visit. REUTERS/Claudia Daut (CUBA) 

Director General of UNESCO Koichiro Matsuura listens to school children perform at a school in Old Havana January 19, 2009. Koichiro Matsuura is in Cuba on an official visit. REUTERS/Claudia Daut (CUBA) 

Director General of UNESCO, Koichiro Matsuura (L) receives books from Havana's Historian Eusebio Leal after visiting Old Havana January 19, 2009. Koichiro Matsuura is in Cuba on an official visit. REUTERS/Claudia Daut(CUBA) 

Russia's President Dmitry Medvedev (L) welcomes UNESCO Director Koichiro Matsuura during a meeting in Moscow June 11, 2008. REUTERS/Sergei Chirikov/Pool (RUSSIA) 

Argentina's President Cristina Fernandez de Kirchner (L) poses with UNESCO's Japanese director Koichiro Matsuura prior to a meeting at UNESCO's headquarters in Paris April 7, 2008, during her 24-hour visit to Paris on her way to London. REUTERS/Loic Venance/Pool (FRANCE) 

Argentina's President Cristina Fernandez de Kirchner (L) poses with UNESCO's Japanese director Koichiro Matsuura prior to a meeting at UNESCO's headquarters in Paris April 7, 2008, during her 24-hour visit to Paris on her way to London. REUTERS/Loic Venance/Pool (FRANCE) 

Argentina's President Cristina Fernandez de Kirchner (L) poses with UNESCO's Japanese director Koichiro Matsuura prior to a meeting at their headquarters in Paris on April 7, 2008, during a 24-hour visit in Paris on her way to London. REUTERS/Loic Venance/Pool (FRANCE) 

Argentina's President Cristina Fernandez de Kirchner (L) poses with UNESCO's Japanese director Koichiro Matsuura prior to a meeting at their headquarters in Paris on April 7, 2008, during a 24-hour visit in Paris on her way to London. REUTERS/Loic Venance/Pool (FRANCE) 

Argentina's President Cristina Fernandez de Kirchner (L) poses with UNESCO's Japanese director Koichiro Matsuura prior to a meeting at their headquarters in Paris on April 7, 2008, during a 24-hour visit in Paris on her way to London. REUTERS/Loic Venance/Pool (FRANCE) 

The members of Bosnia's three-man inter-ethnic presidency welcome Koichiro Matsuura (2nd R), the General Director of the United Nations Educational, Scientific and Cultural Organisation (UNESCO), in Sarajevo March 25, 2008. Matsuura presented a certificate recognising the inclusion of the Ottoman-era bridge of Mehmed Pasa Sokolovic in the eastern town of Visegrad on the World Heritage List. The members of Bosnia's three-man inter-ethnic presidency are (L-R): Zeljko Komsic, Nebojsa Radmanovic and Haris Silajdzic. REUTERS/ Danilo Krstanovic (BOSNIA AND HERZEGOVINA) 

Miladin Milicevic (R), mayor of the Bosnian town of Visegrad, presents the General Director of the United Nations Educational, Scientific and Cultural Organisation (UNESCO), Koichiro Matsuura, with his honorary citizenship to the eastern town during a ceremony in Sarajevo March 25, 2008. The Ottoman-era bridge of Mehmed Pasa Sokolovic in Visegrad (C, foreground) is included in the World Heritage List. REUTERS/ Danilo Krstanovic (BOSNIA AND HERZEGOVINA) 

Bosnia's presidency chairman Haris Silajdzic (L) holds a certificate presented by Koichiro Matsuura, the General Director of the United Nations Educational, Scientific and Cultural Organisation (UNESCO), during a ceremony in Sarajevo March 25, 2008. The certificate recognises the inclusion of the Ottoman-era bridge of Mehmed Pasa Sokolovic in the eastern town of Visegrad on the World Heritage List. REUTERS/ Danilo Krstanovic (BOSNIA AND HERZEGOVINA) 

UNESCO Director General Koichiro Matsuura looks at pictures of Jews killed in the Holocaust during a visit to the Hall of Names at the Yad Vashem Memorial in Jerusalem February 6, 2008. REUTERS/Ronen Zvulun (JERUSALEM) 

UNESCO Director General Koichiro Matsuura lays a wreath during a visit to the Hall of Remembrance at the Yad Vashem Holocaust Memorial in Jerusalem February 6, 2008. REUTERS/Ronen Zvulun (JERUSALEM) 

UNESCO Director General Koichiro Matsuura visits the Yad Vashem Holocaust Memorial in Jerusalem February 6, 2008. REUTERS/Ronen Zvulun (JERUSALEM) 

UNESCO Director General Koichiro Matsuura speaks during the concluding session of the fourth international conference on environmental education in the western Indian city of Ahmedabad November 28, 2007. REUTERS/Amit Dave (INDIA) 

Morocco's Princess Lalla Salma (2nd L) poses with UNESCO Director General Koichiro Matsuura (2nd R) during the 34th session of the General Conference of Unesco in Paris, October 29, 2007. UNESCO member states are meeting from October 16 to November 3, 2007. REUTERS/Serge Benhamou/Pool (FRANCE) 

Morocco's Princess Lalla Salma (L) shakes hands with UNESCO Director General Koichiro Matsuura during the 34th session of the General Conference of Unesco in Paris October 29, 2007. UNESCO member states are meeting from October 16 to November 3, 2007. REUTERS/Serge Benhamou/Pool (FRANCE) 

Morocco's Princess Lalla Salma (L) and UNESCO Director General Koichiro Matsuura attend the 34th session of the General Conference of UNESCO in Paris October 29, 2007. UNESCO member states are meeting from October 16 to November 3, 2007. REUTERS/Serge Benhamou/Pool (FRANCE) 

Sweden's King Carl XVI Gustaf (L) is welcomed by UNESCO Director General Koichiro Matsuura (R) and George Anastasopoulos (C), President of the General Conference, on the first day of the 34th session of the General Conference at UNESCO in Paris, October 16, 2007. Representatives of UNESCO's 193 member states started examining the role of the UN educational and cultural agency within the broader United Nations reform drive. REUTERS/Remy de la Mauviniere/Pool (FRANCE) 

UNESCO'S General Director Koichiro Matsuura (L) talks with Ecuadorean President Rafael Correa during his visit to Carondelet Palace in Quito May 2, 2007.REUTERS/Guillermo Granja(ECUADOR) 

UNESCO'S General Director Koichiro Matsuura (L) jokes with Ecuadorean President Rafael Correa during his visit to Carondelet Palace in Quito May 2, 2007.REUTERS/Guillermo Granja(ECUADOR) 

UNESCO'S General Director Koichiro Matsuura addresses the media during a news conference in Quito May 2, 2007. REUTERS/ Guillermo Granja (ECUADOR) 

Bolivian President Evo Morales (R) shakes hands with UNESCO Director-General Koichiro Matsuura of Japan at the presidential palace in La Paz, March 27, 2007. Director Matsuura is on a visit to Bolivia. REUTERS/Jose Luis Quintana (BOLIVIA) 

UNESCO General-Director Koichiro Matsuura observes a rattle made with a stuffed armadillo during his visit in La Paz March 26, 2007. REUTERS/David Mercado (BOLIVIA) 

Bolivian dancers from the "Diablada" group perform during a welcome ceremony for UNESCO General-Director Koichiro Matsuura (not pictured) of Japan, in La Paz, March 26, 2007. REUTERS/David Mercado (BOLIVIA) 

Bolivian dancers from the "Morenada" group perform during a welcome ceremony for UNESCO General-Director Koichiro Matsuura (not pictured) of Japan, in La Paz, March 26, 2007. REUTERS/David Mercado (BOLIVIA) 

Bolivian dancers of "Pujllay" group perform during a welcome ceremony for UNESCO General-Director, Koichiro Matsuura (not pictured) of Japan, in La Paz, March 26, 2007. REUTERS/David Mercado (BOLIVIA) 

UNESCO Director-General Koichiro Matsuura (R) of Japan talks with Bolivian Minister of Culture Pablo Groux (L) while a dancer looks on during a welcome ceremony in La Paz March 26, 2007.REUTERS/David Mercado (BOLIVIA) 

UNESCO Director-General Koichiro Matsuura (R) of Japan greets the crowd next to a Bolivian dancer during a welcome ceremony in La Paz March 26, 2007.REUTERS/David Mercado (BOLIVIA) 

Koichiro Matsuura, director-general of UNESCO (United Nations Educational, Scientific and Cultural Organization), attends a signing ceremony at the German foreign ministry in Berlin February 21, 2007. REUTERS/Tobias Schwarz (GERMANY) 

Koichiro Matsuura, director-general of UNESCO (United Nations Educational, Scientific and Cultural Organization), attends a signing ceremony at the German foreign ministry in Berlin February 21, 2007. REUTERS/Tobias Schwarz (GERMANY) 

Director-general of UNESCO Koichiro Matsuura (C) poses for a photo with voodoo priests near Togo's capital Lomé, February 14, 2007. REUTERS/Noel Kokou Tadegnon (TOGO) 

Director-general of UNESCO Koichiro Matsuura (C) poses for a photo with voodoo priests near Togo's capital Lomé, February 14, 2007. REUTERS/Noel Kokou Tadegnon (TOGO) 

Koichiro Matsuura, UNESCO (United Nations Educational, Scientific and Cultural Organization) director-general, poses for photographers with voodoo priests and priestesses near Togo's capital Lome February 14, 2007. REUTERS/Noel Kokou Tadegnon (TOGO) 

U.S. first lady Laura Bush listens to Koichiro Matsuura, UNESCO (United Nations Educational, Scientific and Cultural Organization) director-general, during a conference on teacher training and literacy at UNESCO headquarters in Paris January 15, 2007. Bush is on a three-day visit to France. REUTERS/Benoit Tessier (FRANCE) 

U.S. first lady Laura Bush and Koichiro Matsuura, UNESCO (United Nations Educational, Scientific and Cultural Organization) director-general, attend a conference on teacher training and literacy at UNESCO headquarters in Paris January 15, 2007. Bush is on a three-day visit to France. REUTERS/Benoit Tessier (FRANCE) 

Ukrainian boxers Vitaly (2nd L) and Wladimir Klitschko (2nd R) celebrate their nomination as UNESCO Champions for Sport with Ukraine's first lady Kateryna Yushchenko (L) and Japan's Koichiro Matsuura, Director-General of UNESCO, during a ceremony at the UNESCO headquarters in Paris December 4, 2006. REUTERS/Charles Platiau (FRANCE) 

Ukrainian boxers Vitaly (L) and Wladimir Klitschko show their official nominations as UNESCO Champions for Sport they received from Koichiro Matsuura (R), Director-General of the Organization, during a ceremony at the UNESCO headquarters in Paris, December 4, 2006. Standing at left is Ukraine's first lady Kateryna Yushchenko. REUTERS/Charles Platiau (FRANCE) 

Ukrainian boxers Vitaly (L) and Wladimir Klitschko show their official nominations as UNESCO Champions for Sport they received from Koichiro Matsuura (R), Director-General of the Organization, during a ceremony at the UNESCO headquarters in Paris December 4, 2006. REUTERS/Charles Platiau (FRANCE) 

The G8 leaders, invited leaders and heads of international organizations pose for a group photo, after the final session of the G8 summit in St. Petersburg July 17, 2006. Pictured are
(front L-R) UNESCO Director-General Koichiro Matsuura, U.N. Secretary-General Kofi Annan, Indian Prime Minister Manmohan Singh, Kazakhstan's President Nursultan Nazarbaev, Chinese President Hu Jintao, French President Jacques Chirac, Russian President Vladimir Putin, German Chancellor Angela Merkel, U.S. President George W. Bush, Brazilian President Luiz Inacio Lula da Silva, Finnish Prime Minister Matti Vanhanen, European Commission President Jose Manuel Barroso, and (rear L-R) WTO Director-General Pascal Lamy, IAEA Director-General Mohamed Elbaradei, World Bank President Paul Wolfowitz, Britain's Prime Minister Tony Blair, South African President Thabo Mbeki, Mexican President Vicente Fox, Japanese Prime Minister Junichiro Koizumi, Canadian Prime Minister Stephen Harper, Congo President Denis Sassou-Nguesso, IIEA Exective Director Claude Mandil and WHO Acting Director-General Anders Nordstrom. Italian Prime Minister Romano Prodi is not in the picture. REUTERS/Katsumi Kasahara/JAPAN POOL 

The G8 leaders, invited leaders and heads of international organizations pose for a group photo, after the final session of the G8 summit in St. Petersburg July 17, 2006. Pictures are
(front L-R) UNESCO Director-General Koichiro Matsuura, U.N. Secretary-General Kofi Annan, Indian Prime Minister Manmohan Singh, Kazakhstan's President Nursultan Nazarbaev, Chinese President Hu Jintao, French President Jacques Chirac, Russian President Vladimir Putin, German Chancellor Angela Merkel, U.S. President George W. Bush, Brazilian President Luiz Inacio Lula da Silva, Finnish Prime Minister Matti Vanhanen, European Commission President Jose Manuel Barroso and (rear L-R) WTO Director-General Pascal Lamy, IAEA Director-General Mohamed Elbaradei, World Bank President Paul Wolfowitz, Britain's Prime Minister Tony Blair, South African President Thabo Mbeki, Mexican President Vicente Fox Quesada, Japanese Prime Minister Junichiro Koizumi, Canadian Prime Minister Stephen Harper, Congo President Denis Sassou-Nguesso, IEA Executive Director Claude Mandil and WHO Acting Director-General Anders Nordstrom. Italian Prime Minister Romano Prodi is not in the picture. REUTERS/Hiroko Ami/JAPAN POOL 

Senegalese President Abdoulaye Wade (C) holds the Houphouet-Boigny prize after an award ceremony attended by Director of UNESCO Koichiro Matsuura (L) and President of Jury, Henry Kissinger, at the UNESCO Headquarters in Paris May 16, 2006. The Houphouet-Boigny prize was awarded to Wade for his contributions to peace. REUTERS/Emmanuel Fradin 

Ukrainian President Viktor Yushchenko (R) shakes hands with UNESCO Director-General Koichiro Matsuura (L) during their meeting in Kiev April 25, 2006. The UN agency has been supporting Ukraine in its efforts to resolve Chernobyl related problems for many years. REUTERS/Mykhailo Markiv/Pool 

British scientist Jane Goodall (C) poses next to Prince Albert of Monaco after receiving the French Legion of Honour medal from French Prime Minister Dominique de Villepin (R) at the Matignon Palace in Paris January 17, 2006. [Goodall also received a medal from the Director-General of UNESCO, Koichiro Matsuura,] as homage for her work in protecting Africa's endangered great apes. 

British scientist Jane Goodall poses for photographers after receiving the French Legion of Honour medal from French Prime Minister Dominique de Villepin at the Matignon Palace in Paris January 17, 2006. [Goodall also received a medal from the Director-General of UNESCO, Koichiro Matsuura,] as homage for her work in protecting Africa's endangered great apes. 

British scientist Jane Goodall receives the French Legion of Honour medal from French Prime Minister Dominique de Villepin at the Matignon Palace in Paris January 17, 2006. Goodall received on Tuesday the French Legion of Honour [as well as a medal from Director-General of UNESCO Koichiro Matsuura on UNESCO's 60th anniversary], as a homage for her life long work protecting endangered great apes in Africa. 

British scientist Jane Goodall (C) poses next to Prince Albert of Monaco after receiving the French Legion of Honour medal from French Prime Minister Dominique de Villepin (R) at the Matignon Palace in Paris January 17, 2006. Goodall also received a medal from the Director-General of UNESCO, Koichiro Matsuura, as homage for her work in protecting Africa's endangered great apes. REUTERS/Franck Prevel 

British scientist Jane Goodall gives a speech after receiving the French Legion of Honour medal from French Prime Minister Dominique de Villepin at the Matignon Palace in Paris January 17, 2006. Goodall received on Tuesday the French Legion of Honour as well as a medal from Director-General of UNESCO Koichiro Matsuura on UNESCO's 60th anniversary, as a homage for her life long work protecting endangered great apes in Africa. REUTERS/Franck Prevel