US Navy Seal to publish book about bin Laden killing

A member of the US Navy Seal team that killed Osama bin Laden has written a first-hand account of the operation, triggering more questions about the possible public release of classified information involving the historic assault of the terror leader's compound in Pakistan.

US military officials said they do not believe the book has been read or cleared by the Defence Department, which reviews publications by military members to make sure that no classified material is revealed.

The book, titled 'No Easy Day' and scheduled to be released on September 11, the anniversary of the 9/11 bombings which Bin Laden claimed to have authorised.

It comes amid a heated debate over whether members of the military - both active duty and retired - should engage in political battles.