Al-Qaida leader Osama bin Laden may periodically slip back into Afghanistan from his remote hideout in neighboring Pakistan, a senior White House official says, adding a new twist to the mystery of the elusive terrorist's whereabouts.
President Barack Obama's national security adviser, James Jones, said bin Laden, believed hiding mainly in a rugged area of western Pakistan, may be spending some time in Afghanistan, where he was based while plotting the Sept. 11 attacks on the United States.
But Obama's Pentagon chief, Robert Gates, said the U.S. has lacked good intelligence on bin Laden for a long time — "I think it has been years" — and did not confirm that he'd slipped into Afghanistan.
Jones and Gates spoke Sunday on separate TV interview shows as part of an administration effort to explain and defend Obama's new Afghan war strategy, which Gates said includes a focus on preventing al-Qaida from again gaining a foothold inside Afghanistan. A concern is that the Taliban, if permitted to regain power in Kabul, could facilitate a return of al-Qaida's leadership.
The failed hunt for bin Laden has been one of the signature frustrations of the global war on terrorism that former President George W. Bush launched after the Sept. 11 attacks. When U.S. forces ousted the Taliban regime in late 2001, bin Laden fled into Pakistan from his mountain redoubt. Despite being isolated, bin Laden has managed to periodically issue audio messages.
The main explanation given by both the Bush and Obama administrations for not getting bin Laden is that they simply don't know where he is.
"If we did, we'd go get him," Gates said Sunday.
Jones, a retired Marine general, stressed the urgency of targeting bin Laden and spoke of a renewed campaign to capture or kill him.
Asked on CNN's "State of the Union" whether the administration has reliable intelligence on bin Laden's whereabouts, Jones replied, "The best estimate is that he is somewhere in North Waziristan, sometimes on the Pakistani side of the border, sometimes on the Afghan side of the border."
Jones did not comment on the intelligence behind that estimate, nor did he cite a time period or describe more specifically bin Laden's apparent border crossings.
Gates told ABC's "This Week" that "we don't know for a fact where Osama bin Laden is," although he agreed that his likely location is North Waziristan.
That's part of the loosely governed Federally Administered Tribal Areas of northwest Pakistan where the border with Afghanistan is largely unrecognized and unmarked. There is little Pakistani government or military control in this remote region, and militants affiliated with al-Qaida can move freely across the frontier into Afghanistan.
The U.S. has targeted North Waziristan and other areas on the Pakistan side of the border with drone-launched missile strikes, killing substantial numbers of militants as well as Pakistani civilians. The Pakistani army has undertaken an offensive against Taliban militants in South Waziristan but it has not expanded the effort into North Waziristan.
Obama administration officials have often asserted, as did the Bush administration, that they believe bin Laden is being sheltered on the Pakistani side of the border, along with other senior al-Qaida leaders. But Jones broke new ground by saying publicly that the al-Qaida chief may at times have slipped back into Afghanistan.
Sen. John McCain, R-Ariz., made a somewhat similar, if less specific, remark Sunday about bin Laden's movements. He told NBC's "Meet the Press" that knowledgeable people have told him that bin Laden "moves back and forth."
Two Afghan provinces in the country's northeast held particular attraction for bin Laden in the 1990s: Kunar and Nuristan. The towering mountains there hid bin Laden training camps that date back to the Soviet occupation of Afghanistan in the 1980s. A longtime bin Laden ally, Gulbuddin Hekmatyar, holds sway in the area. U.S. troops have targeted Hekmatyar's security chief, Kashmir Khan, in Kunar.
During his years in Afghanistan as a guest of the Taliban, bin Laden operated mainly in the southern region around Kandahar.
Gates said he does not blame a lack of Pakistani cooperation for the absence of intelligence on bin Laden.
"No, I think it's because if, as we suspect, he is in North Waziristan, it is an area that the Pakistani government has not had a presence in, in quite some time," Gates said, adding that although the Pakistani government has its own priorities, any pressure it brings on the Taliban is helpful because it is in league with al-Qaida.
During a visit to Pakistan in late October, Secretary of State Hillary Rodham Clinton caused a stir by chiding Pakistani officials for failing to press the hunt for al-Qaida inside their borders. She said she found it "hard to believe" that no one in Islamabad knows where the al-Qaida leaders are hiding and couldn't get them "if they really wanted to."