The CIA tortured al-Qaeda suspects with rectal feeding, waterboarding and threats to harm their children and sexually abuse their mothers, according to a long-delayed and highly controversial Senate report published on Tuesday.

One suspect died of hypothermia while naked chained to a floor while at least five detainees were rectally-fed their meals as a method of behavioral control at 'black sites' or the Guantanamo military base in Cuba.

One interrogator told another detainee that he would never go to court, 'because we can never let the world know what I have done to you'.

Senator Dianne Feinstein, Democrat chair of the intelligence committee which prepared the report, said on Capitol Hill today that the torture was 'a stain on our values and on our history'.

Obama added: 'I will continue to use my authority as President to make sure we never resort to those methods again.'

The 500-page document released on Tuesday included conclusions of a still-secret, 6,700-page report, the results of a five-year, $40 million investigation, which showed that the CIA lied to cover up torture.

The Senate report concluded that 'the 'enhanced interrogation techniques' didn't produce results where it really mattered - most importantly, the killing of Osama bin Laden and the thwarting of terrorist attacks.

After reviewing 6 million agency documents, investigators could find no example of unique and life-saving intelligence gleaned from the coercive techniques that in some cases left detainees hallucinating and suicidal.

The U.S. military was on high alert around the world on Tuesday after ugly details of American torture techniques were released.

RECTAL FEEDING AND HYDRATION
Detainees were subjected to 'rectal feeding' and 'rectal rehydration' - an enema administered with the intent of providing nutrition when normal feeding is not possible, common in 19th-century medicine.

One detainee Majid Khan was placed in a forward-facing position with his head lower than his torso and his lunch, consisting of hummus, pasta with sauce and raisins was 'pureed' and rectally infused while in .

Khan, who joined al Qaeda after graduating from high school in Baltimore, Maryland, admitted to plotting to blow up gasoline tanks in the U.S.

The terrorist struck a plea bargain and is serving 19 years in return for his full cooperation with authorities after pleading guilty to five war crimes, including murder, attempted murder and spying.

However sentencing was delayed for four years, and if Khan fails to cooperate, he could receive up to 25 years, The Washington Post reported.

He is reportedly still at Guantanamo after being held at a secret location in Afghanistan for several years.

WATERBOARDING

The CIA claimed at one interrogation site never to have waterboarded a suspect - only for the Senate Intelligence Committee to uncover a photograph of a waterboard surrounded by buckets of water.

In 2013, the CIA could not explain the presence of a well-worn waterboard at another site.

Khalid Shaykh Mohammad, whom the U.S. believes was the architect of 9/11, was waterboarded 183 times to the point where it became 'a series of near drownings', according to CIA internal documents.

Terrorist Abu Zubaydah was left 'completely unresponsive with bubbles rising through his open full mouth' after waterboarding.

SLEEP DEPRIVATION AND STRESS POSITIONS FOR DETAINEES WITH BROKEN FEET AND LEGS
The torture technique was used alongside other brutal methods of interrogation.

Detainees were often kept awake for 180 hours at a time often in stress positions, naked and with hands shackled.

One detainee had been chained to the wall in a standing position for 17 days. According to the CIA interrogator, some of the prisoners looked like 'dogs that had been kenneled'.

Another had his hands shackled to an overhead bar for 22 hours each days for more than two consecutive days, in order to 'break resistance'.

At one facility, known as the 'Cobalt' facility or the 'dungeon', the CIA made certain detainees who had broken feet or legs to stand in stress-inducing positions.

One detainee with a prosthetic leg was shackled in the standing position for a bout of sleep deprivation until medical personnel assessed that he could not maintain the position.

Redha al-Najar, a former Osama bin Laden bodyguard and one of the first prisoners, was hooded and subjected to round-the-clock music or interrogations to prevent him from sleeping - though there was no indication he was resisting interrogators.

A month later, CIA questioners found al-Najjar a 'broken man' and on the verge of a 'complete breakdown'.

But the treatment got worse, with officials lowering his food ration, keeping him shackled in the cold and giving him a diaper instead of toilet access, the report said.

TEMPERATURE TORTURE

One suspect died of hypothermia while naked and chained to a floor while others received 'ice baths'.

Gul Rahman a member of Hezb-e Islami - an Afghan terrorist organisation, was shackled to the wall of his cell, that required him to rest on the bare, concrete floor while wearing only a sweatshirt. A CIA officer had ordered his clothing be removed when he was judged to be uncooperative during an earlier interrogation.

The next day, officers found Rahman's dead body. An autopsy found that he likely died from hypothermia.

Rahman was captured in October 2002 and held at a secret location, known as the 'Salt Pit' in northern Kabul, Afghanistan, while temperatures were close to freezing.He died within a month.

Justice Department investigations into that and another death of a CIA detainee resulted in no charges.

SEXUAL ABUSE THREATS AND PSYCHOLOGICAL GAMES

Detainees were hooded and dragged up and down corridors while being slapped, punched and receiving 'wallings' - being throwing against walls. They were routinely forced to walk around naked.

The families of suspects were threatened - with some being told that their mothers would be sexually abused and their children harmed.

One suspect was blindfolded and had a cordless drill turned on near his head but he was not injured.

One operative engaged in 'Russian Roulette' with a detainee.

Others were locked in small boxes or kept in dark cells alone for weeks at a time with loud noise or music being played constantly.

The CIA led several detainees to believe they would never be allowed to custody alive – suggesting to one detainee that he would only leave in a coffin-shaped box.

One interrogator told another detainee that he would never go to court, 'because we can never let the world know what I have done to you'.

HOW THE CIA LIED ABOUT 26 WRONGFULLY HELD VICTIMS - BROUGHT IN ON BAD INFORMATION EXTRACTED FROM OTHER TORTURED SUSPECTS

Of the 119 known detainees that were in CIA custody during the life of the program, at least 26 were wrongfully held.

The agency said it detained 'fewer than 100 individuals', but a review of agency records indicated that it held 119. It also under-reported the number of detainees who were subjected to torture.

These included an 'intellectually challenged' who was used as leverage to get a family member to provide information and two individuals who were intelligence sources for foreign liaison services and were former CIA sources.

Two individuals' connection to al-Qaeda was based solely on information fabricated by a CIA detainee being brutally tortured.

CIA USED 'UNQUALIFED, DISHONEST AND IMMATURE' OFFICERS TO RUN DETENTION SITES

Due to 'poor record-keeping', a full account of how many specific CIA detainees were held and how they were specifically treated while in custody may never be known.

The CIA's management of the detainee program was 'inadequate and deeply flawed', according to findings.

A junior officer was placed in charge of one facility - where few formal records were kept on detainees and interrogations took place unsupervised.

Operatives were not adequately trained or vetted and the CIA also used officers with histories of violence or the abuse of others.

CIA PAID $80M TO PSYCHOLOGISTS WITH NO EXPERIENCE IN INTERROGATION OR AL QAEDA

The CIA contracted two outside psychologists for the interrogations - but neither had any experience in interrogation, counter-terrorism in particularly relating to al Qaeda or even language skills.

Two psychologists, who helped develop the CIA's enhanced interrogation procedures, founded a company in 2005 to help run the program.

Between 2005 and 2009, the company pulled about $81 million from the government.

The psychologists were previously involved in the Air Force's 'Survival, Evasion, Resistance and Escape school' and neither had 'specialized knowledge of al-Qa'ida, a background in counterterrorism, or any relevant cultural or linguistic expertise,' according to the Senate committee's report.

And before founding the company, one of the psychologists recommended the use of coercive interrogation in the case of Gul Rahman, days before Rahman was found dead of suspected hypothermia in 2002.

NONE OF THE INFORMATION EXTRACTED FROM DETAINEES PROVED USEFUL IN THE TRACKING DOWN OF BIN LADEN

After reviewing 6 million agency documents, investigators found no case of unique and life-saving intelligence gleaned from the interrogation techniques used on the detainees. On the biggest anti-terrorism success of all, the 2011 killing of bin Laden, the investigators dismiss the idea that such techniques proved decisive.

HOW PRESIDENT BUSH AND THE WHITE HOUSE WERE KEPT IN THE DARK

'The C.I.A. repeatedly provided incomplete and inaccurate information' to the White House, the report concludes.

For four years, from 2002-2006, the CIA used interrogation techniques such as waterboarding, sleep deprivation and beatings to torture prisoners, but the president was not briefed on these methods until 2006, by which point three dozen detainees had fallen victim to them.

Emails, reports, memos and other documents studied by the Senate committee paint a picture of a White House that condoned the brutal questioning of suspects but was kept in the dark about many aspects of the program, including whether it really worked.

CIA records state that prior to the use of the CIA's enhanced interrogation techniques on Abu Zubaydah in 2002, the CIA did not brief Secretary of State Colin Powell or Secretary of Defense Donald Rumsfeld, on the techniques.

WHAT THE REPORT DOESN'T SAY

Commenting on the Senate Intelligence Committee's report on CIA torture, Clare Algar, Executive Director at international human rights NGO Reprieve said

'This is a good start, but it is far from the whole picture. The names of many victims of rendition and torture are absent – not least that of Khadija al Saadi, who was just 12 years old when she was 'rendered' along with her entire family to Gaddafi's Libya, in a joint CIA – MI6 operation. We are still a long way from acknowledging the horrors of the CIA's torture programme, and achieving real accountability.'

COMPETING CLAIMS OF TORTURE EFFECTIVENESS

The CIA said U.S. citizen Jose Padilla was implicated in the so-called Dirty Bomb/Tall Buildings plotting. Terror leader Khalid Sheikh Mohammad tasked Padilla in 2002 with conducting an operation using natural gas to explode tall buildings in the United States, later known as the 'Tall Buildings Plot'.

Over the next few years, the CIA cited the capture of Padilla before he could pull off such a plot as a prime example of how 'key intelligence collected from (High Value Detainee) interrogations after applying interrogation techniques' had 'enabled CIA to disrupt terrorist plots' and 'capture additional terrorists'. It also said the information was otherwise unavailable and saved lives.

The Senate report says the CIA first received reporting on the threat posed by Padilla from a foreign government.

Eight days later, al-Qaida operative Abu Zubaydah gave the FBI information on the plot without names, four months before the CIA began using its harsh interrogation techniques on Zubaydah, and after the intelligence community had concluded that Padilla's plots were infeasible.

Since coming to office in 2009, President Obama has sought to distance the U.S. from past deeds and outlawed harsh interrogation techniques which he has denounced as 'torture.'

'We tortured some folks,' Obama said in August, talking about the contents of the report.

The CIA's defenders insist the methods saved American lives by helping to uncover al-Qaeda's network, while critics say they ran contrary to U.S. values and hardened anti-American attitudes.

Former Bush vice president Dick Cheney staunchly defended the interrogation program, telling the New York Times it was 'absolutely, totally justified'.

He denied the CIA withheld any information, and emphasized the program had been vetted by the Justice Department.

'As far as I'm concerned, they ought to be decorated, not criticized,' he said of the CIA interrogators.

'When we had that program in place, we kept the country safe from any more mass casualty attacks, which was our objective,' he said.

Even though the redacted paper will absolved Bush and his White House of knowledge to the extent of which the CIA allowed terrorism suspects to be tortured in Europe and Asia in the wake of 9/11, Bush has openly opposed the release of the document.

'We're fortunate to have men and women who work hard at the CIA serving on our behalf,' he told CNN's Candy Crowley during an interview that aired on Sunday.

'These are patriots. And whatever the report says, if it diminishes their contributions to our country, it is way off base,' he continued, calling the CIA operatives and directors about to be chastised 'really good people'.

The investigation began in 2009 and took three years to complete. The full report is 6,200 pages and has 35,000 footnotes. After negotiations and security concerns, this was reduced to 500 pages with redactions.

The committee's chairwoman, Senator Dianne Feinstein, sparred for months with the administration over proposed redactions.

Feinstein said on Monday she wanted Americans reading the report to see that 'when we make mistakes we admit them... and we move on'.

In April, the Senate committee voted overwhelmingly to release a reportedly severely critical 500-page executive summary and 20 conclusions of the secret document.

Laporan Komite Intelijen Senat yang tebalnya mencapai 6.000 halaman antara lain berisi banyak bukti-bukti namun sebagian tergolong rahasia dan hanya ringkasan 480 halaman saja yang diumumkan.

Pengumuman laporan ini sempat tertunda karena adanya perbedaan pandangan di Washington tentang apa yang bisa diumumkan.

Program interogasi CIA dihentikan oleh Presiden Obama ketika menjadi presiden pada tahun 2009.

Pada masa pemerintahan Presiden George W Bush, operasi CIA atas al-Qaida -yang secara internal dikenal dengan Pengiriman, Penanganan, dan Interogasi- mencakup 100 tersangka teroris yang ditahan di 'lokasi-lokasi hitam' di luar Amerika Serikat.

Lokasi hitam merujuk kepada tempat di negara-negara yang aturan hukumnya relatif lebih lemah dibanding Amerika Serikat.

Para tersangka teroris itu diinterogasi dengan menggunakan metode yang disebut waterboarding atau menyiram air ke wajah seseorang yang ditutup kain sehingga orang tersebut seperti tenggelam, maupun tamparan, penghinaan antara lain dengan dengan ditelanjangi, maupun dibuat merasa kedinginan dan kekurangan tidur.

Menjelang pengumuman laporan Senat AS itu, pengamanan di berbagai fasilitas Amerika di seluruh dunia ditingkatkan.