The US government had seized a treasure trove of documents in the 2011 raid on Osama bin Laden's Pakistani hideout in Abbottabad compound in which he was killed. In a 42-page booklet originally in Arabic, the cache of 113 documents, translated and declassified by US intelligence agencies, are mostly dated between 2009 and 2011, reports Reuters. Here are the top 10 revelations from the declassified documents:

Osama feared US led drone strikes.

Al Qaeda's leaders were increasingly worried about spies in their midst, drones in the air and secret tracking devices reporting their movements as the U.S.-led war against them ground on

In an apparent reference to armed U.S. drones patrolling the skies, bin Laden says his negotiators should not leave their rented house in the Pakistani city of Peshawar "except on a cloudy overcast day."

Laden was getting increasingly paranoid

Bin Laden, writing under the pseudonym Abu Abdallah, expresses alarm over his wife's visit to a dentist while in Iran, worrying that a tracking chip could have been implanted with her dental filling.

"The size of the chip is about the length of a grain of wheat and the width of a fine piece of vermicelli," he wrote.

The letter ended with this instruction: "Please destroy this letter after reading it."