The Week in Pictures

Participants make their way along the Sao Paulo International Marathon route.  (Andre Penner / Associated Press)

Two men pay tribute at the former concentration camp. Hundreds of people gathered at Dachau to commemorate the 1945 liberation of the Nazi concentration camp.  (Christof Stache / Associated Press)

Ultra-Orthodox Jews pray at the grave site of Rabbi Shimon Bar Yochai in northern Israel during the holiday commemorating Bar Yochai’s death. Bar Yochai was a great scholar and one of the most important sages in Jewish history.  (Menahem Kahana / AFP/Getty Images)

A dead sea turtle lies on the beach in Pass Christian, Miss. Researchers from the Institute for Marine Mammal Studies in Gulfport, Miss., collected a number of dead turtles and will examine them to determine the cause of death.  (Dave Martin / Associated Press)

Rory McIlroy of Ireland reacts after making a birdie putt on the 18th hole during the final round of the Quail Hollow Championship golf tournament at Quail Hollow Club. McIlroy rolled in a 40-foot birdie to set the course record with a 10-under 62 and earn his first win on the PGA Tour.  (Gerry Broome / Associated Press)

Super Saver and jockey Calvin Borel, right, win the 136th Kentucky Derby at Churchill Downs in Louisville, Ky.  (JASON SZENES / EPA)

Indonesians raise their fists as they burn an effigy of a rat symbolizing corruption during a May Day rally outside the presidential palace in Jakarta, the Indonesian capital. Tens of thousands of workers turned out across Asia in May Day marches, demanding more jobs and hikes in minimum wage.
See related story  (Irwin Fedriansyah / Associated Press)

Indian dancers perform at the May Day rally in downtown Los Angeles.  (Irfan Khan / Los Angeles Times)

Marchers for immigrant rights converge on Broadway, shouting slogans and waving flags and placards.  (Brian van der Brug / Los Angeles Times)

Demonstrators attend a march in Rosarno, southern Italy, as workers and immigrants rally in honor of International Workers’ Day. Worldwide, the holiday is marked by calls for more jobs, better work conditions and higher wages to improve the lot of working people and immigrants, both legal and illegal.  (Adriana Sapone / Associated Press)

Visitors wait on line to enter the British pavilion on the first day of World Expo 2010 in Shanghai. The event, which is to be attended by an estimated 70 million people by the time it ends in October, is seen as a showcase of China’s growing economic might.  (Phillipe Lopez / AFP / Getty Images)

A least tern checks her two eggs on the beach in Gulfport, Miss. Environmentalists are concerned that the spreading oil spill in the Gulf of Mexico could threaten the endangered bird species.  (Dave Martin / Associated Press)

Devil May Care gets a bath after a morning workout at Churchill Downs on Friday.  (Ed Reinke / Associated Press)

Pakistani laborers work by a smelter at an iron forge Friday on the eve of May Day, or International Labor Day. Pakistan has a workforce of around 56 million people among a population of 168 million, according to Pakistan’s official figures compiled by the Federal Bureau of Statistics. Every year thousands of laborers rally across the country demanding better wages and conditions to mark May Day.  (Arif Ali AFP / Getty Images)

Defending champion Toshiaki Nishioka of Japan, right, hits Philippine challenger Balweg Bangoyan in the fifth round of their WBC super bantamweight boxing title match at Nippon Budokan on Friday.  (Shuji Kajiyama / Associated Press)

Kashmiri children peer out of a window at the funeral procession of Mohd Shafiq in Srinagar on Friday. Police said Shafiq, 42, was hit in the head by a stone and fatally injured. His family said Shafiq had died of bullet injuries. Anti-India insurgents have waged a two-decade fight against rule by New Delhi in the restive, Muslim-majority region that has left more than 47,000 people dead, according to the official count. Seperatists put the toll twice as high.  (Rouf Bhat AFP / Getty Images)

A Russian firefighter prepares a water cannon as a figurehead of a burning floating restaurant is seen in smoke on the Moskva River.  (Ivan Sekretarev / Associated Press)

Mario Vollera, 36, of Rome gets a workout on the rings at the beach near the Santa Monica Pier as people deal with the wind and try to enjoy the sunshine Thursday.  (Al Seib / Los Angeles Times)

Elizabeth Seitz of Germany performs on the beam Wednesday at the European Artistic Gymnastics Team Championships at the National Indoor Arena in Birmingham.  (Glyn Kirk / AFP / Getty Images)

Kyrgyz honor guards install the national flag at Ala-Too square in central Bishkek, a ceremony not held since April 7 amid political upheaval and violence as President Kurmanbek Bakiyev was ousted. Kyrgyzstan’s interim government has said that it had charged Bakiyev with mass killings and asked Belarus to hand him over for trial.  (Vyacheslav Oseledko / AFP/Getty Images)

Students at Birmingham University brave the rain to watch an outdoor screening of the third and final televised debate among Britain’s prime ministerial candidates.
See full story  (Christopher Furlong / Getty Images)

Shareholders of Lufthansa airline check for information before the company’s annual general assembly at the International Congress Center in Berlin. Lufthansa CEO Wolfgang Mayrhuber announced his company had lost about around $265 million because of the disruptions caused by Iceland’s volcanic eruption.  (Michael Gottschalk / AFP/Getty Images)

The Soviet-era T-34 tanks are seen at the Red Square in front of the GUM Department Store during a rehearsal for the Victory Day military parade to be held on May 9 to celebrate 65 years of the victory in World War II.  (Mikhail Metzel / Associated Press)

Rabbi Frazi Mazouz reads the Torah on the eve of the annual Jewish pilgrimage at the Ghriba synagogue in Djerba, Tunisia. This week marks the eight anniversary of the suicide bombing that racked this sleepy island resort, desecrating an ancient synagogue and killing 21 people. More than 6,000 Jewish pilgrims are expected on May 22-23.  (Fethi Belaid / AFP/Getty Images)

Curious meerkats play with a model post box as part of an event at London Zoo to raise awareness about voting by mail ahead of Britain’s general election on May 6  (Carl de Souza / AFP/Getty Images)

President Obama, First Lady Michelle Obama, Vice President Joe Biden and House Speaker Nancy Pelosi watch as the casket with the body of civil rights leader Dorothy Height arrives for funeral services at the National Cathedral.  (Haraz N. Ghanbari / Associated Press)

A skateboarder practices in front of the Euro sculpture outside the headquarters of the European Central Bank (ECB) in Frankfurt. The euro hit a one-year low against the dollar Wednesday and fears are escalating that the Greek debt crisis is spreading across Europe after Greek debt was slashed to junk status.  (Thomas Lohnes / AFP/Getty Images)

A horse is groomed during morning workouts in advance of the 136th running of the Kentucky Derby.  (Jamie Squire / Getty Images)

Tiger Woods waits to hit a shot on the 11th hole during the first round of the Quail Hollow Championship at Quail Hollow Country Club.  (Streeter Lecka / Getty Images)

A jet flying over the city is silhouetted on the full moon.  (Dmitry Lovetsky / Associated Press)

A village boy climbs a coconut tree as others wait below.  (Biswaranjan Rout / Associated Press)

Game officials release a young female royal Bengal tiger into the water in the Sundarban Wildlife Reserve near Kolkata, in India’s West Bengal state. The tiger had strayed from the reserve during a storm. The most recent Indian government census shows only about 1,400 tigers remain in the country.  (Joydip Suchandra Kundu / Associated Press)

Elton John performs during a benefit commemorating the 20th anniversary of AIDS patient Ryan White’s death.  (Darron Cummings / Associated Press)

A Parisian sunbathes on the bank of the Seine river on a warm spring day in Paris.  (Thibault Camus / Associated Press)

Effigies of the leaders of the main British political parties hang from gallows as part of a publicity event outside the London Dungeon tourist attraction in London. Depitcted, they are from left, leader of the Labor Party, Prime Minister Gordon Brown, Liberal Democrat leader Nick Clegg and Conservative leader David Cameron. Britain will hold national elections May 6, with many expecting the result to be a hung Parliament.  (Matt Dunham / Associated Press)

Rod Barajas of the New York Mets reacts after he was hit by a pitch by the Dodgers’ John Ely during Wednesday’s game at Citi Field.  (Kathy Willens / Associated Press)

President Obama visits a biofuel facility in Macon, Missouri, part of his tour of three Midwestern states.  (Jewel Samad / AFP/Getty Images)

Thai soldiers fire rifles during a clash with “Red Shirt” anti-government protesters outside Bangkok, Thailand.  (Paula Bronstein / Getty Images)

French President Nicolas Sarkozy, left, and Chinese President Hu Jintao attend a news conference at the Great Hall of the People in Beijing. Sarkozy is in China for a three-day visit.  (Philippe Wojazer / Associated Press)

Buddhist monks carry candles during a procession at Bayon temple in Cambodia’s Siem Reap province.  (Tang Chhin Sothy / AFP/Getty Images)

A prosthetic leg stands beside a bicycle before participants in the Wounded Warrior Soldier Ride take a lap around the South Lawn of the White House. Vice President Joe Biden hosted the event. The Wounded Warrior Soldier Ride is a four-day event through Washington and its environs involving soldiers who have endured life-altering injuries.  (Saul Loeb / AFP/Getty Images)

Protesters hold up photos of Goldman Sachs Chief Executive Officer Lloyd Blankfein on Capitol Hill during the Senate investigations subcommittee hearing on Wall Street and the financial crisis.  (Evan Vucci / Associated Press)

Four of the seven current and former Goldman Sachs executives who testified before the Senate Permanent Subcommittee on Investigations are sworn in. They are, from left, Daniel Sparks, Joshua S. Birnbaum, Michael J. Swenson and Fabrice Tourre.  (Charles Dharapak / Associated Press)

An exercise rider makes his way to the track for an early-morning workout at Churchill Downs in Louisville, Ky. The Kentucky Derby starts this weekend.  (Charlie Riedel / AP Photo)

A pregnant praying mantis climbs through Fynbos flowers. Temperatures are dropping during the Southern Hemisphere autumn as winter approaches.  (Nic Bothma / EPA)

Ukrainian opposition and pro-presidential lawmakers fight during ratification of the Black Sea Fleet lease deal with Russia in parliament. Ukraine’s parliament voted to extend Russia’s lease of a Crimean naval port for the fleet in a chaotic session.  (Efrem Lukatsky / Associated Press)

Spanish graffiti artist Miguel Angel Belin spray paints a portrait of the late Rabbi Menachem Mendel Schneerson on the outside wall of a bomb shelter at the Chabad Center in the southern Israeli town.  (Jim Hollander / EPA)

Artists of the vaudeville show “Made in Berlin” pose in front of a mock-up of the Reichstag building in Berlin to promote the show, which is being presented from May 6 to Sept. 25 at the Wintergarten theater in Berlin.  (Lennart Preiss / AFP/Getty Images)

A fisherman tries his luck along Malecon avenue after heavy rain in the Cuban capital.  (Javier Galeano / Associated Press)

A woman pays tribute to victims of the April 26, 1986, Chernobyl nuclear disaster in Ukraine. The nuclear meltdown spread radioactive fallout across much of Europe.  (Genya Savilov / AFP/Getty Images)

A member of the Green Party poses in front of a mock nuclear power plant during a demonstration to call for a nuclear phaseout. The demonstration in Germany took place on the 24th anniversary of the nuclear power plant accident in Chernobyl, Ukraine.  (Sascha Schuermann / AFP/Getty Images)

President Obama arrives at the Presidential Summit on Entrepreneurship in Washington. The summit aims to identify how the U.S. can deepen ties between business leaders, foundations and entrepreneurs in the United States and Muslim communities around the world.  (Saul Loeb / AFP/Getty Images)

In this aerial photo, oil from a leaking pipeline floats near the coast of Louisiana. Last week’s explosion and collapse of an oil rig killed 11 workers.  (Gerald Herbert / Associated Press)

North Korean defector Shin Hae-sook weeps during a press conference on human rights during North Korea Freedom Week in Seoul. The event, which kicked off this week, promotes human rights issues among North Korean people.  (Ahn Young-joon / Associated Press)

The mother of slain Hamas official Ali Sweiti weeps over the rubble of their house, which was destroyed by Israeli forces during a raid that killed her son in the West Bank village near Hebron. An Israeli military spokesman in Tel Aviv said Sweiti, 42, had been involved in militant activity against Israel for more than two decades and wanted for years.  (Abed Al Hashlamoun / EPA)

French bullfighter Sebastian Castella performs during a bullfight during the the San Marcos Fair, which runs until May 9.  (Leopoldo Smith Murillo / EPA)

Visitors look at the artwork “Mikroskop” by Danish artist Olafur Eliasson during the exhibition “Innen Stadt Aussen” at Martin Gropius Building in Berlin.  (Robert Schlesinger / EPA)

Pro-government demonstrators carry a huge Thai national flag during a rally at Victory Monument. There has been an ongoing standoff between pro- and anti-government protesters called Red Shirts. Red Shirt protesters are demanding that Prime Minister Abhisit Vejjajiva resign, dissolve parliament and leave the country.  (Vincent Yu / Associated Press)

Horses get ready to exercise at Churchill Downs.  (Charlie Riedel / Associated Press)

Relatives and colleagues of the victims of the Chernobyl nuclear power plant disaster place flowers at the tomb at Moscow`s Mitino cemetery, on the 24th anniversary of the tragedy. About 45,000 people developed disabilities and 3,000 died as a result of the Chernobyl disaster, according to Russian Emergency Ministry.  (Yuri Kochetkov / EPA)