Following a lengthy tug-of-war with Capitol Hill, the Pentagon has given a GOP senator an unclassified report detailing the suspected militant backgrounds of more than 100 detainees held or recently released from the U.S. military prison at Guantanamo Bay.

The report that Republican Sen. Kelly Ayotte of New Hampshire shared with The Associated Press will likely fuel debate over shutting it down.

It tells the story of detainees suspected of being bodyguards for former al-Qaida leader Osama bin Laden. But it also tells the stories of low-level militants released after being detained for decades without charge.

There are 76 detainees left at the prison. Ayotte says 93 percent of the detainees who were still there as of late last year have been assessed as high risk for re-engagement in terrorism.