WASHINGTON — A new report on Guantanamo detainees tells the stories of former al-Qaida bomb makers and bodyguards as well as low-level militant cooks and medics who have been transferred or cleared for release — despite fears they are at risk of returning to battle and many after being held without charge for more than 14 years at the military prison the president wants to close.

The Pentagon gave the unclassified report to Sen. Kelly Ayotte, R-N.H., who has been pushing the Obama administration for years to be more transparent about who is being transferred out of the prison at Guantanamo Bay, Cuba.

She posted it online Wednesday.

“By clearly detailing some of the disturbing terrorist activities and affiliations of detainees at Guantanamo, the report demonstrates why these terrorists should not be released — they pose a serious risk to our national security,” Ayotte said.

The remaining detainees “will no doubt” return to the fight once released, she said, noting that the Defense Department told her that 93 percent of the detainees still at Guantanamo as of late last year were at high risk for re-engagement in terrorism.

The report tells the story of detainees like Karim Bostan, who once ran a flower shop and later was accused of running an al-Qaida-affiliated explosives cell believed to have targeted U.S.-led coalition forces in eastern Afghanistan. He's been at Guantanamo for more than 13 years and has been cleared for transfer to a country willing to accept him.

It also, however, tells the story of Muhammad Said Salim Bin Salman, a Yemeni who traveled to Afghanistan to train at an al-Qaida camp. He says he became a cook and never fought because he suffers from back pain. Deemed a medium intelligence risk, he was cleared for release and transferred to Oman in January following 14 years of detention.

David Remes, a human rights lawyer who represents several detainees, says dangerous men are not being released

“Holding the men at all was a deep injustice and a lasting stain on the U.S. These men shouldn't have been in Guantanamo in the first place,” Remes said. “It's one thing to prosecute detainees for attacks on the U.S. It is quite another thing — and contrary to the values the U.S. says it is committed to — to hold men for many years, who are accused of no crime.”

The Office of the Director of National Intelligence reports that 5 percent of Guantanamo prisoners released since President Barack Obama took office have re-engaged in militant activities and another 8 percent are suspected of it. That compares to 21 percent confirmed and 14 percent suspected during the Bush administration.

Opened in January 2002, the prison once held about 770 detainees. Bush transferred more than 500 and Obama has transferred 162 detainees to other countries.

The report given to Ayotte covers 107 detainees who were at the prison as of Nov. 25, 2015, the day Obama signed the 2016 defense policy bill, which required the administration to provide more information to Congress about the detainees. The population has been whittled to 76.

Republican lawmakers accuse Obama of rushing to downgrade detainees' threat status to clear them for transfer so he can make good on his campaign pledge to close the prison before he leaves office in January.

Myles Caggins III, a spokesman for the National Security Council at the White House, declined to predict whether Obama will achieve his goal, but said the U.S. continues to work with countries willing to receive the 34 detainees — nearly half the remaining prison population — who have been cleared for transfer.

The GOP-led Congress has tried to slow or stop detainees from being transferred out and has banned any from being moved to U.S. prisons.

Ayotte has been working for months to get the Pentagon to provide Congress more information.