Yet another disappointment from Obama. *grumble*BBC wrote:The release of more photos of prisoner abuse by US soldiers is "of no benefit" and may inflame opinion against the US, President Barack Obama has said.
The pictures were not "sensational" and every case of abuse had been dealt with by the military, with action taken where appropriate, he said.
The White House previously said it would not fight a court ruling ordering the release of the pictures.
US civil liberties activists accused Mr Obama of adopting Bush-era policies.
The pictures were due to be released by 28 May, according to the court order.
The order was issued by an appeals court in September 2008, in response to a Freedom of Information Act request by the American Civil Liberties Union (ACLU).
'Mockery'
The US defence department had been preparing to release the images, reportedly taken in Iraq and Afghanistan, and the dispute could now end up before the US Supreme Court.
Speaking outside the White House, Mr Obama said he would not tolerate the abuse of prisoners.
However, he had, he said, directed his legal team to fight the court-ordered release of the photos because he was concerned they might "inflame anti-American opinion and put our troops in greater danger".
The Pentagon had not sought to conceal anything, he added, and appropriate action had been taken against individuals involved in abuses. The president had been advised against publication by Defence Secretary Robert Gates, Centcom commander Gen David Petraeus and the commander of US forces in Iraq, Gen Ray Odierno, a Pentagon official said.
The ACLU said the president's "decision not to release the photographs makes a mockery of President Obama's promise of transparency and accountability".
"It's absolutely essential that these photos be released so the public can examine for itself the torture and abuse that was conducted in its name," ACLU attorney Amrit Singh said.
The human rights group Amnesty International also criticised the president's decision, saying human beings had been "tortured and denied basic rights".
But the switch was welcomed by Senator Lindsey Graham, a Republican, and Senator Joe Lieberman, an independent.
"The fact that the president reconsidered the decision is a strength not a weakness," they said in a joint statement.
The BBC's Richard Lister in Washington says that although President Obama has insisted on the need for open government, it appears that on this issue he has been persuaded that - for now at least - such transparency risks doing more harm than good.
Also, why does nobody ever call for a curb on footage that could inflame anti-Islamic sentiment?