A Washington D.C source familiar with the documents told the paper bin Laden appeared to have been in direct or indirect communication with Boko Haram as well as many other militant outfits.
But the paper said it remained unclear whether Boko Haram, which has been responsible for a series of suicide attacks and bombings in the last year, is in touch with al-Qaeda or one of its affiliates, Al Qaeda in the Maghreb.
But documents in the cache show that leaders of the Nigerian group had been in contact with top levels of al-Qaeda in the past 18 months – confirming claims made to the Guardian in January by a senior Boko Haram figure.
Other papers in the haul are now likely to be declassified, the paper says. They include memos apparently dictated by bin Laden urging followers to avoid indiscriminate attacks which kill Muslims and pondering a rebranding of al-Qaeda under a new name.
The documents include memos stating broad strategic aims but little “hands-on” planning, according to sources.
The papers also show a close working relationship between top al-Qaeda leaders and Mullah Omar, the overall commander of the Taliban, including frequent discussions of joint operations against Nato forces in Afghanistan, the Afghan government and targets in Pakistan.
The communications show a three-way conversation between bin Laden, his then deputy Ayman Zawahiri and Omar, who is believed to have been in Pakistan since fleeing Afghanistan after the collapse of his regime in 2001.
They indicate a “very considerable degree of ideological convergence,” the source told The Guardian.
-The Nation & The Guardian