(CNN) -- Nearly 800 classified U.S. military documents obtained by WikiLeaks reveal extraordinary details about the alleged terrorist activities of al Qaeda operatives captured and housed at the U.S. Navy's detention facility in Guantanamo Bay, Cuba.
The secret documents have been made available to several news organizations, including the New York Times and the Washington Post - and some have been published by WikiLeaks, an organization that facilitates the anonymous leaking of secret information.
The documents shed light on the way detainees behaved while at Guantanamo, and on how they were assessed in terms of their danger to the United States. They are intelligence assessments of nearly every one of the 779 individuals who have been held at Guantanamo since 2002, according to the Post.
The classified files described some of the detainees as being compliant while others threatened violence against guards. One stated he would fly planes into houses.
They also paint in great detail a portrait of al Qaeda as it grew stronger in Afghanistan in the 1990s, prepared for the 9/11 attacks and scattered in their aftermath.
Among the files already published by WikiLeaks and examined by CNN is that of Ahmed Khalfan Gailani, recently convicted by a New York court of taking part in the bombing of the US embassy in Tanzania in 1998. The file, from 2006 when Gailani was transferred to Guantanamo, includes details of his time as a bodyguard and cook to Osama bin Laden shortly before the 9/11 attacks. Gailani is cited as telling interrogators that the al Qaeda leader had a "normal diet" and usually ate with about 15 bodyguards.
The document says that Gailani later became one of al Qaeda's few forgers of travel documents. He also opted for training in using explosives to avoid front-line combat.
A document from July 2008 profiles another bodyguard for bin Laden, Sanad Yislam al Kazimi, who stated that he "would have been willing to die for UBL" (the shorthand used for the al Qaeda leader.) It says that al Kazimi may have had knowledge of al Qaeda's nuclear and chemical programs.
Al Kazimi escaped from Afghanistan after the fall of the Taliban in 2001 and returned to Yemen, where he continued to train for terrorist attacks, according to the document.
He was arrested in 2002 after being lured to Dubai while planning an attack on Port Rashid in the United Arab Emirates. It adds that while at Guantanamo, al Kazimi made "numerous threats against U.S. personnel including the President."
Al Kazimi reportedly said "he would like to tell his friends in Iraq to find the interrogator, slice him up, and make a shwarma (a type of sandwich) out of him, with the interrogator's head sticking out of the end of the shwarma."
Another Yemeni, Abdu Ali Sharqawi, is described as a "senior al Qaeda facilitator" with links to the 9/11 plotters.
He was allegedly responsible for arranging the travel of Yemeni jihadists to Afghanistan in the 1990s, and when he also moved to Afghanistan he became a confidant of bin Laden.
The 11-page document about his activities says that "on occasion detainee hiked mountain trails with UBL, who hiked them on a daily basis."
Sharqawi told his interrogators that bin Laden had been in good health, even though he had one kidney. The document suggests al Qaeda had plenty of money in the aftermath of 9/11, asserting that "detainee received and passed on over $500,000" while helping jihadists to escape Afghanistan.
According to the Washington Post, the documents provide detailed insight into Osama bin Laden's thinking and movements immediately after 9/11.
"Among other previously unknown meetings, the documents describe a major gathering of some of al Qaeda's most senior operatives in early December 2001 in Zormat, a mountainous region of Afghanistan between Kabul and Khost," the newspaper reports. "There, the operatives began to plan new attacks, a process that would consume them, according to the assessments, until they were finally captured."
The documents show that detainees' accounts were extensively cross-checked against each other, with at least four detainees confirming that al Kazimi was a bodyguard to bin Laden.