Photojournalism of the Week: March 22, 2013

Pope Francis I is flanked by Swiss Guards as he sits under a wooden sculpture in the Paul VI general audience hall during an audience for members of the media at the Vatican. Paul Hanna is the Chief Photographer for Reuters News Pictures in Spain and Portugal. You can follow him on Twitter here.REUTERS/Paul Hanna
An animal rights activist protests against meat consumption through a performance to promote vegetarianism during "Day Without Meat" in central Barcelona.REUTERS/Albert Gea
U.S. President Barack Obama walks with Rabbi Israel Meir Lau in the Hall of Remembrance during Obama's visit to the Yad Vashem Holocaust Memorial in Jerusalem. You can follow Jason Reed on Twitter or check out his Reuters profile hereREUTERS/Jason Reed
An Iraqi Kurd resident visits the cemetery for victims of the 1988 chemical attack in the Kurdish town of Halabja, 160 northeast of Baghdad. Iraqi Kurds on Saturday marked the 25th anniversary of the chemical attack on the northern Iraqi city of Halabja by Saddam Hussein's forces. Up to 5,000 people may have been killed by chemical gas, villages were razed and thousands of Kurds were forced into camps during the 1988 Anfal genocidal campaign against Iraqi Kurds. You can read about Thaier Al-Sudani's time spent photographing the Iraq war in this 2011 interview.REUTERS/Thaier al-Sudani
In a photo issued by North Korea's official state news agency, hundreds of North Korean soldiers brandish their weapons. The image is one of several recently released with a statement claiming that North Korea is prepared for armed conflict with South Korea and the United States.KCNA News Agency
The air pollution levels in the sky over Tiananmen Square during the National People's Congress (NPC) in Beijing are seen in this combination picture taken on the dates March 6, 7, 8, 9, 10, 11, 12, 14 and 15 (L-R). Chinese Premier Li Keqiang pledged on March 17, 2013 that his government would "show even greater resolve" in tackling China's festering pollution crisis, a source of increasing public fury.REUTERS/Wei Yao
New Mexico fans react to a play against Harvard during the second half of their second round NCAA tournament game in Salt Lake City. Harvard (seeded 13th) went on to defeat the 4th-seeded New Mexico in the first day's biggest upset. You can see more of Jim's work on his website.REUTERS/Jim Urquhart
Journalists stand inside the latest work by the artist Christo, entitled "Big Air Package." The indoor installation, which was created inside a silo formerly used to store natural gas, is 90 metres high, with a diameter of 50 metres and a volume of 177,000 cubic metres. The artwork is the largest indoor sculpture ever made.REUTERS/Ina Fassbender
Miami Heat forward Chris Andersen (nickname: Birdman) stands on the court during player introductions before their NBA game against the Boston Celtics in Boston. You can keep up with Brian Snyder's work via his Twitter account.REUTERS/Brian Snyder

Be sure to check out our archive of past Photojournalism of the Week galleries, where you will find more great work.