Documents found in Osama bin Laden’s Pakistani hideout show he wanted to assasinate US president Barack Obama.
They also portray the al Qaeda leader as being deeply worried about the security and competence of his organisation.
17 papers found after bin Laden was killed in a raid a year ago have been declassified and posted online by the Combating Terrorism Center, a group attached to the US Military Academy.
The documents add up to 175 pages dating from 2006 to 2011. It it not clear in all cases who wrote or received them.
They show that in 2010 bin Laden asked for two teams to be assigned to tracking down and attacking Air Force One – the plane used by the US president.
He seems to have had a low opinion of Anwar al-Awlaki, the militant preacher accused of several al Qaeda attacks, who was killed in a US drone strike last year.
Bin Laden was apparently also concerned that poorly planned operations had led to the unnecessary deaths of thousands of Muslims.