Washington: Eager to become al-Qaeda chief, Aymen al-Zawahiri set up Osama bin Laden by repeatedly sending to his hideout in Pakistan's Abbottabad a courier who had been interrogated by the CIA, claims a new book.

"Despite knowing that this operative was blown, Zawahiri used Abu Ahmed al Kuwaiti to make repeated trips to bin Laden's compound," says the book "Seal Target Geronimo" written by former US SEAL commando Chuck Pfarrer.

"Based on this accumulation of information, one can draw conclusion that it was Zawahiri who led the US to bin Laden's hiding place in Abbottabad, accomplishing this through a complex and persistent series of lapses in security," he said.

"Some of these slips were subtle and some of them were so obvious that they were laughable," Pfarrer wrote in his book, which also claims that Zawahiri even tried to get the Russians to kill bin Laden and he also wrongly diagnosed bin Laden.

"Zawahiri tried to get the Russians to kill bin Laden; they did not. He hoped that Addison's disease would take him, but it did not. Now Zawahiri played his final card – he deliberately used a blown courier to communicate with Osama, and the inevitable happened. The Americans found him," Pfarrer wrote in his 225-page book.

He said that for 30 years, 60-year-old Zawahiri had been willing to use violence to bring about his idea of Islamic government. Now, the Muslim faithful were throwing off the chains of dictatorship, the book said.

"Zawahiri had worn himself out trying to get Osama to escalate his attacks against the West. Repeated plans to smuggle chemical weapons into the US had come to naught and now Zawahiri had had enough. By late in 2009, he had determined to wrest control of al-Qaeda from bin Laden," the book says.

ISI protected Laden, Zawahiri: Report

The officials of Pakistan's Inter-Services Intelligence were aware of Osama Bin Laden's hideout in Abbottabad, not only this, they also provided protection and safe houses to his then deputy and now the top al Qaeda leader Ayman al-Zawahiri, according to a new book.
The ISI officials periodically checked on Laden also, this sensational disclosure has been by Chuck Pfarrer, a former SEALs, in his latest book "Seal Target Geronimo" that hit the stands here on Tuesday.
Pfarrer says his account in the book, that gives a blow by blow account of the killing of bin Laden in a surprise US raid in Abbottabad on May 2, is based on his interviews and interaction with members of the SEALs team that killed Bin Laden and the US military and Obama Administration officials.
All the sources have been kept anonymous.
Notably officials of the Obama Administration, Department of Defense and Central Intelligence Agency (CIA) have so far maintained that they haven't obtained any evidence which indicates about the ISI knowledge of the whereabouts of bin Laden or providing support infrastructure to him.
"The ISI knew exactly where he was, but did not inform the US. They continued to let Osama pace back and forth in his compound," Pfarrer wrote in his 225-page book published by New York-based St Martin's Press.
Giving an insight into the last few months of bin Laden's life, Pfarrer wrote that he became increasingly reclusive and seldom left the main building, unless it was to put on a set of golden-threaded robes and have one of his aides film him as he tried to read pronouncements to be aired on Al Jazeera or released on al Qaeda's web sites.