A man walks past a makeshift memorial for French Muslim policeman Ahmed Merabet near the site where he was shot dead by gunmen, close to the headquarters of the French satirical weekly Charlie Hebdo. Joel Saget/AFP/Getty Images hide caption

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World leaders, including, from the left, Israel's Prime Minister Benjamin Netanyahu, Mali's Ibrahim Boubacar Keita, France's Francois Hollande, Germany's Angela Merkel, EU President Donald Tusk and Palestinian President Mahmoud Abbas march in Paris on Sunday to honor the victims of three days of bloodshed. A White House spokesman acknowledged "we should have sent someone with a higher profile." Philippe Wojazer/AP hide caption

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Emergency workers transport a patient to the Accident and Emergency ward at St. Thomas' Hospital in London. Recently released figures suggest the NHS in England has missed its four-hour A&E waiting time target, with performance dropping to its lowest level for a decade. Dan Kitwood/Getty Images hide caption

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Palestinian Authority President Mahmoud Abbas has accused Israel of committing war crimes against the Palestinians. The Palestinians have joined the International Criminal Court, a move that has angered Israel and is unlikely to lead to any prosecutions in the near term. Abbas Momani/AFP/Getty Images hide caption

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