Washington, D.C. — Demonstrators for and against the Patient Protection and Affordable Care Act march and chant outside the U.S. Supreme Court. The high court, which has set aside six hours over three days, will hear arguments over the constitutionality of the act.

PHOTOGRAPH BY: Chip Somodevilla / Getty Images

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Silao, Mexico — Pope Benedict XVI looks from the helicopter at the Cristo Rey sanctuary as he arrives to lead the holy Mass celebration at the Parque del Bicentenario. Pope Benedict XVI sought to boost the Catholic faith in the face of violence and other challenges on his first visit to Mexico this weekend, receiving eager support from vast crowds of Mexicans.

PHOTOGRAPH BY: OSSERVATORE ROMANO / AFP / Getty Images

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Leon, Mexico — People await the arrival of Pope Benedict XVI outside the cathedral of Our Most Holy Mother of Light, where the pontiff will celebrate vespers with the bishops of Mexico and of Latin America.

PHOTOGRAPH BY: ALBERTO PIZZOLI / AFP / Getty Images

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Seoul — President Obama greets members of the audience after speaking at Hankuk University.

PHOTOGRAPH BY: Pablo Martinez Monsivais / Associated Press

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Berlin — A young woman walks through an installation by artist Barbara Kruger at the exhibition "ARTandPRESS" at Martin Gropius Bau. The exhibition shows works by artists who have interpreted the medium of newspapers.

PHOTOGRAPH BY: Sean Gallup / Getty Images

http://framework.latimes.com/?attachment_id=56883

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Bangkok, Thailand — Lightening streaks across the skyline during heavy rain. A total of 823 flood-related deaths have been recorded, including 10 in heavy November monsoon rains in the south of the kingdom, since July.

PHOTOGRAPH BY: PORNCHAI KITTIWONGSAKUL / AFP / Getty Images

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Yayladagi, Turkey — Syrian refugee children stand behind a fence at the refugee camp in Yayladagi. Turkey is home to a growing number of Syrian refugees fleeing the more than year-old unrest raging in its neighbor. Officials said the total figure has slightly exceeded 17,000 compared with about 9,500 only two months ago.

PHOTOGRAPH BY: ADEM ALTAN / AFP / Getty Images

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Verbier, Switzerland — France's Aurelien Ducroz competes on the Bec de Rosses mountain during the Xtreme Freeride World Tour final above the Swiss Alps resort of Verbier.

PHOTOGRAPH BY: FABRICE COFFRINI / AFP / Getty Images

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St. Antoenien-Partnun, Switzerland — A snow-covered hut stands in St. Antoenien-Partnun, Switzerland. While spring has reached the valleys, winter weather still dominates in the mountain regions.

PHOTOGRAPH BY: Arno Balzarini / Associated Press

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Sanford, Fla. — Marc Booker leads a prayer during the candlelight vigil at the memorial site outside the gates of the Retreat at Twin Lakes, where Trayvon Martin was shot by neighborhood watch captain George Zimmerman.

PHOTOGRAPH BY: Julie Fletcher / Associated Press

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Herat, Afghanistan — A former Taliban fighter looks on after joining Afghan government forces during a ceremony. Twelve fighters left the Taliban to join government forces in western Afghanistan. The Taliban, ousted from power by a U.S.-led invasion in the wake of the 9/11 attacks, announced earlier this month that they planned to set up a political office in Qatar ahead of talks with Washington.

PHOTOGRAPH BY: AREF KARIMI / AFP / Getty Images

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