Problem: Pink Floyd - The Wall is a 1982 British live-action/animated musical drama film directed by Alan Parker with animated segments by political cartoonist Gerald Scarfe, and is based on the 1979 Pink Floyd album of the same name. The film centers around a confined rocker named Pink, who, after being driven into insanity by the death of his father and many depressive moments during his lifetime, constructs a metaphorical (and sometimes physical) wall to be protected from the world and emotional situations around him. When this coping mechanism backfires he puts himself on trial and sets himself free. The screenplay was written by Pink Floyd vocalist and bassist Roger Waters.

In the mid-1970s, as Pink Floyd gained mainstream fame, Waters began feeling increasingly alienated from their audiences:  Audiences at those vast concerts are there for an excitement which, I think, has to do with the love of success. When a band or a person becomes an idol, it can have to do with the success that that person manifests, not the quality of work he produces. You don't become a fanatic because somebody's work is good, you become a fanatic to be touched vicariously by their glamour and fame. Stars--film stars, rock 'n' roll stars--represent, in myth anyway, the life as we'd all like to live it. They seem at the very centre of life. And that's why audiences still spend large sums of money at concerts where they are a long, long way from the stage, where they are often very uncomfortable, and where the sound is often very bad.  Waters was also dismayed by the "executive approach", which was only about success, not even attempting to get acquainted with the actual persons of whom the band was comprised (addressed in an earlier song from Wish You Were Here, "Have a Cigar"). The concept of the wall, along with the decision to name the lead character "Pink", partly grew out of that approach, combined with the issue of the growing alienation between the band and their fans. This symbolised a new era for rock bands, as Pink Floyd "explored (... ) the hard realities of 'being where we are'", drawing upon existentialists, namely Jean-Paul Sartre.

who was in it?

Answer with quotes: the lead character "Pink",

Question:
Abu Zubaydah ( ( listen) AH-boo zuu-BAY-d@; Arabic: bw zbyd@, Abu Zubaydah; born March 12, 1971, as Zayn al-Abidin Muhammad Husayn) is a Saudi Arabian citizen currently held by the U.S. in the Guantanamo Bay detention camp in Cuba.
The final memo mentioned Zubaydah several times. It claimed that due to the enhanced interrogation techniques, Zubaydah "provided significant information on two operatives, [including] Jose Padilla[,] who planned to build and detonate a 'dirty bomb' in the Washington DC area." This claim is strongly disputed by Ali Soufan, the FBI interrogator who first interrogated Zubaydah following his capture, by traditional means. He said the most valuable information was gained before torture was used. Other intelligence officers have also disputed that claim. Soufan, when asked in 2009 by Senator Sheldon Whitehouse during a Congressional hearing if the memo was incorrect, testified that it was. The memo noted that not all of the waterboarding sessions were necessary for Zubaydah, since the on-scene interrogation team determined he had stopped producing actionable intelligence. The memo reads:  This is not to say that the interrogation program has worked perfectly. According to the IG Report, the CIA, at least initially, could not always distinguish detainees who had information but were successfully resisting interrogation from those who did not actually have the information. See IG Report at 83-85. On at least one occasion, this may have resulted in what might be deemed in retrospect to have been the unnecessary use of enhanced techniques. On that occasion, although the on-scene interrogation team judged Zubaydah to be compliant, elements within CIA Headquarters still believed he was withholding information. See id at 84. At the direction of CIA Headquarters, interrogators therefore used the waterboard one more time on Zubaydah.  John McLaughlin, former acting CIA director, stated in 2006, "I totally disagree with the view that the capture of Zubaydah was unimportant. Zubaydah was woven through all of the intelligence prior to 9/11 that signaled a major attack was coming, and his capture yielded a great deal of important information."  In his 2007 memoir, former CIA Director George Tenet writes:  A published report in 2006 contended that Zubaydah was mentally unstable and that the administration had overstated his importance. Baloney. Zubaydah had been at the crossroads of many al-Qa'ida operations and was in position to - and did - share critical information with his interrogators. Apparently, the source of the rumor that Zubaydah was unbalanced was his personal diary, in which he adopted various personas. From that shaky perch, some junior Freudians leapt to the conclusion that Zubaydah had multiple personalities. In fact, Agency psychiatrists eventually determined that in his diary he was using a sophisticated literary device to express himself. And, boy, did he express himself.
Answer this question using a quote from the text above:

what was the memo about

Answer:
It claimed that due to the enhanced interrogation techniques, Zubaydah