President Obama first revealed his decision earlier while recording an interview with CBS News to be broadcast on Sunday. He acknowledged that withholding the photographs might encourage conspiracy theorists who claim Bin Laden still lives, but said: "It is important for us to make sure that very graphic photos of somebody who was shot in the head are not floating around as an incitement to additional violence or as a propaganda tool."
The mythology surrounding Bin Laden looked to be growing all the same, with CIA director Leon Panetta revealing that Bin Laden had a €500 note and two telephone numbers sewn into his clothing, suggesting he had been prepared to flee in an emergency.
US intelligence was meanwhile switching its focus to finding the Egyptian-born Ayman al-Zawahiri, the former No 2 and likely successor to Bin Laden as FBI and CIA teams hunted for clues as to his whereabouts in the trove of digital data seized when the al-Qa'ida leader was killed. Eric Holder, the US Attorney General, confirmed the seized materials – including five computers, 10 hard drives and scores of DVDs and thumb drives – were being analysed by experts. They were also scouring for information on any pending attacks on the US or elsewhere, Mr Holder said.
While the White House strived to contain the controversy triggered by the admission that Bin Laden had been unarmed when he was shot, President Obama prepared to build on the political benefits of the successful operation with a visit this morning to Ground Zero in lower Manhattan. A poll published by CBS and The New York Times showed an 11-point boost in the President's approval rating to 57 per cent since Sunday.
Testifying on Capitol Hill, Mr Holder rejected suggestions that the Navy Seals may have erred in executing Bin Laden even though he had no gun, and said the killing "was an act of national self-defence". "The operation in which Osama bin Laden was killed was lawful," Mr Holder said. "He was the head of al-Qa'ida, an organisation that had conducted the attacks of September 11. He admitted his involvement."
Mr Obama decided to withhold the photographs of the deceased Bin Laden only hours after Mr Panetta said on NBC television that he felt sure they would be published. After consulting other cabinet members, including Hillary Clinton, he made the judgment out of concern that the images could trigger violence against US personnel overseas and be used as a propaganda tool, his spokesman Jay Carney indicated. If the decision threatens to make silencing conspiracy theorists more difficult, the White House was already struggling to exercise control over competing versions of what actually happened in the Bin Laden compound.
In an interrogation with Pakistani officials, Bin Laden's 12-year-old daughter reportedly confirmed her father had been killed. She said, however, that he had been captured first, then shot in front of his family. The al-Arabiya news network reported that members of Bin Laden's family who were in the compound during the raid were being treated at a hospital in Rawalpindi.
Zawahiri is now America's most wanted criminal. He is expected to stay as close to ground as possible. Analysts in the US noted, however, that if he is to be accepted as the new head of al-Qa'ida and its multiple splinter groups, he will have to find a way fairly soon to assert his authority and that will mean putting his head over the parapet. A possible rival could be Anwar al-Awlaki, the American-born jihadist cleric who heads al-Qa'ida in Yemen.
"Zawahiri will be very careful of his personal security, but he needs to consolidate his position; he needs to be out there," Daniel Byman, a counterterrorism expert at the Brookings Institution in Washington, told Bloomberg News. "In his new capacity he needs to meet and communicate, and then he's vulnerable."
Mr Obama will lay a wreath at Ground Zero in Manhattan this morning but will not make any public address. The White House said the president had invited his predecessor, George W Bush, in office during the 2001 attacks, to accompany him. However, Mr Bush, who prefers to stay out of Mr Obama's political sunlight, declined the offer.
The seized digital materials may also help the US to answer a question that was asked almost immediately news of Bin Laden's demise broke: did anyone in the Pakistani government know of his whereabouts and even abet him in remaining in his compound in the garrison town of Abbottabad?
Pakistan tried yesterday to spread the blame for what appears to have been a mighty intelligence foul-up. "There is an intelligence failure of the whole world, not just Pakistan alone," Prime Minister Yusuf Raza Gilani said.
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