Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:Former Libyan Foreign Minister Moussa Koussa, having defected to the U.K., faces possible prosecution there after the government said he wouldn't receive immunity. 
  
 At the same time, Scottish law officials said they wanted to interview Mr. Koussa, a former longtime intelligence spy chief, in connection with the 1988 Lockerbie bombing. 
  
 Enlarge Image Close Prerna Sodhi for theThe Wall Street Journal Former Libyan Foreign Minister Moussa Koussa behind Libyan leader Moammar Gadhafi at a meeting of Arab leaders in Doha, Qatar, in 2009. 
  
 Mr. Koussa's arrival in the U.K. late Wednesday on a private jet from Tunisia was widely hailed as the biggest diplomatic setback for Col. Moammar Gadhafi since the start of the Libyan uprising in February. 
  
 U.S. and European officials say they expect more defections and are seeking to engineer that, while Tripoli swirled with rumors of who might be next. 
  
 But some analysts say news that Mr. Koussa might have to answer for his time in Col. Gadhafi's inner circle might put other members off from following his lead. "This puts them into a dilemma, they may not find a welcoming environment out of Libya after all," said Azzedine Layachi, a professor of international and Middle East affairs at St. John's University. 
  
 It also underscores the dilemma faced by Western governments that both want to warn Col. Gadhafi confidants that they will be held to account for any crimes, and yet encourage them to leave his side. U.S. and European officials continue to say there are signs of fissure in Col. Gadhafi's inner circle. 
  
 That circle is increasingly made up of family members who are considered as hard-line as Col. Gadhafi. By most accounts, he is relying on brigades commanded by his two sons to fight the rebels in the eastern part of Libya and towns closer to his stronghold of Tripoli. 
  
 There is no suggestion that the country's fearsome intelligence services have faltered in the wake of the defections. Mr. Koussa, for all his lengthy service as Col. Gadhafi's intelligence chief, officially left the spy service two years ago when he became foreign minister. 
  
 Where Mr. Koussa's defection could provide aid to those seeking to oust Col. Gadhafi from power is his insider knowledge of the leader's security regime and the cryptic defense structure within the leader's Tripoli residence known as Bab Aziziyah, which he spent years building as a protective cocoon against bombing raids and assassination attempts, say people familiar with the matter. 
  
 Meanwhile, Ali Treki, who served formerly as Libya's foreign minister and ambassador to the United Nations, also defected, announcing his departure on several opposition websites,the Associated Press reported. 
  
 Two other officials, Oil Minister Shukri Ghanem and the head of the intelligence agency Abu Zayd Dorda, appeared on television shows Thursday to quash rumors that they had also defected. Mr. Dorda said he "would not even dream" of doing so. 
  
 Libya put forth Mr. Treki as its U.N. representative, but the U.S. didn't grant him a visa to come to New York.He also had been apprehensive about taking up a new diplomatic post for Col. Gadhafi and leaving his family behind in Tripoli in case war broke out there, according to a close friend of the family. 
  
 Associated Press Mr. Koussa in Tripoli last week. 
  
 U.K. Foreign Secretary William Hague on Thursday said Mr. Koussa wouldn't be offered immunity from U.K. and international justice. 
  
 Scottish prosecutors and police said they have asked the Foreign and Commonwealth Office to interview Mr. Koussa in connection with Lockerbie. The case "remains open and we will pursue all relevant lines of inquiry," a Crown Office spokeswoman said. 
  
 The U.K. foreign office said it would "respond to any request" to interview Mr. Koussa. An independent police force "should follow evidence wherever it takes them," it said. 
  
 Some Libyan opposition leaders and family members of the Lockerbie bombing's victims believe that Mr. Koussa had a hand in organizing the attack. He has never been indicted for it. 
  
 Any interview could shed more light on the orchestration of the bombing—something that many family members of the victims have long desired. Former Libyan intelligence agent Abdel Baset al-Megrahi was the only one convicted in the bombing of a Pan Am airliner as it flew over the Scottish town of Lockerbie. 
  
 Frank Duggan, president of a group of U.S. victims of the attack, said the group wanted more information and Mr. Koussa was likely to have it."We would love to have him interrogated not just as a witness but as a primary actor and suspect in this criminal act," he said. 
  
 WSJ Middle East Bureau Chief Bill Spindle explains how Libyan rebels are receiving assistance from CIA operatives. Also, Libya's foreign minister abruptly resigned and flew to England. 
  
 Libyan government spokesman Moussa Ibrahim said Mr. Koussa had first asked to go to Tunisia on sick leave and was allowed to do so, but then Mr. Koussa made his decision to resign there. "The information we have is that he's tired, exhausted, and he resigned. That's it," he said. In Tripoli on Thursday there was speculation that Shukri Ghanem, the country's oil minister, was laying the groundwork to defect, but Mr. Ibrahim dismissed that rumor. 
  
 British officials said Mr. Koussa was at a "safe location" in the U.K. and meeting with a variety of British officials, including intelligence officials and diplomats who had worked at the British embassy in Tripoli. 
  
 "His resignation shows that Gadhafi's regime, which has already seen significant defections to the opposition, is fragmented, under pressure and crumbling from within," Mr. Hague said in a news conference Thursday. 
  
 Mr. Hague revealed that Mr. Koussa had been his contact in the Libyan government and that he had spoken to him on Friday. Mr. Hague, though, said he was aware that Mr. Koussa was coming to Britain only a "very short time in advance." 
  
 Prime Minister David Cameron had signed off on Mr. Koussa being allowed into the U.K., and Britain had been in contact with the U.S. over the defection, a Downing Street spokesman said. 
  
 Tommy Vietor, spokesman for the White House National Security Council, called the defection of Mr. Koussa was "a significant blow to the Gadhafi regime." 
  
 Mr. Vietor described Mr. Koussa as one of Col. Gadhafi's most trusted aides "who can help provide critical intelligence about Gaddafi's current state of mind and military plans," an agenda one British official said they intend to pursue. 
  
 —Adam Entous, Paul Sonne and David Gauthier-Villars contributed to this article. 
  
 Tripoli's Envoy At U.N. Hits Snag UNITED NATIONS—The U.S. was locked in a new row with Libya on Thursday over Col. Moammar Gadhafi's attempt to name a former Nicaraguan foreign minister as his ambassador to the United Nations. Former Libyan Foreign Minister Moussa Koussa, who has since defected, informed member nations but not the U.N. secretariat that Libya wants Miguel d'Escoto Brockmann to succeed Abdel Rahman Shalgam as its envoy, according to U.N. spokesman Farhan Haq. Mr. Shalgam and his staff at Libya's U.N. mission broke with Col. Gadhafi in January to back the rebel cause. Since then, Col. Gadhafi has struggled to find a representative at the U.N. after failing to get Ali Treki, a former Libyan foreign minister, appointed to the post. Thursday Mr. Treki became the second high-profile Libyan official to defect in as many days. He announced his departure on opposition websites, the Associated Press reported. Mr. d'Escoto, a Catholic priest and supporter of the Sandinistas who was suspended by the Vatican for his political activities, is a controversial figure, known for his blunt criticism of the U.S. and Israel. U.S. Ambassador to the U.N. Susan Rice told reporters that though Mr. d'Escoto was born in Los Angeles, he had renounced his U.S. citizenship and was in New York on a tourist visa. She said he would need to return to Nicaragua to apply for a U.S. diplomatic visa. But it appeared likely that Mr. d'Escoto, like Mr. Treki, wouldn't be granted a diplomatic visa, officials said. 
  
 —Joe Lauria ||||| Scottish prosecutors have asked to interview Moussa Koussa about the Lockerbie bombing after the Libyan foreign minister and spy chief defected to Britain. 
  
 The request from the Crown Office in Scotland follows demands from Libya's rebel leadership for Koussa to be returned to Libya for trial for murder and crimes against humanity after Muammar Gaddafi is toppled from power. 
  
 William Hague, the British foreign secretary, has said the UK is not offering Koussa immunity from prosecution. 
  
 The Crown Office in Edinburgh has said it is formally asking for its prosecutors and detectives from Dumfries and Galloway police to question Koussa about the 1988 bombing. "We have notified the Foreign and Commonwealth Office that the Scottish prosecuting and investigating authorities wish to interview Mr Koussa in connection with the Lockerbie bombing," it said. 
  
 "The investigation into the Lockerbie bombing remains open and we will pursue all relevant lines of inquiry." 
  
 Dumfries and Galloway police, which investigated the Lockerbie case, has confirmed its detectives are keen to interview Koussa. 
  
 It remains unclear what role Koussa played when Pan Am flight 103 was blown up over Lockerbie in December 1988, killing 270 passengers, crew and townspeople. He later emerged as head of Libyan intelligence services. 
  
 Koussa's defection provides Britain with an unparalleled source of intelligence on the state of the Libyan ruler's inner circle. The Crown Office interview request will further complicate the position of the UK government, which is immediately concerned with using his defection to intensify pressure on Gaddafi and his close allies, and to provide intelligence to the rebellion. 
  
 Senior figures in the Lockerbie case – including Jim Swire, whose daughter Flora was killed in the attack, and Professor Robert Black, a lawyer and architect of the trial of two Libyans accused of the atrocity – have said they believe Koussa might have significant information about Libya's role. 
  
 Koussa was pivotal in the negotiations to hand over the two suspects – Abdelbaset al-Megrahi and Al-Amin Khalifah Fhimah – for trial at Camp Zeist in the Netherlands in 2001. He oversaw Libya's negotiations to pay billion of pounds in reparations for the attack. 
  
 The Libyans' consistent denial of responsibility for the Lockerbie bombing has been repeatedly rejected by the UK and US governments, and Scottish prosecutors. 
  
 Swire, from UK Families of Pan Am Flight 103, and Black, emeritus professor of Scots law at Edinburgh University, have said they believe Megrahi is innocent. He remains the only man convicted of the bombing. 
  
 As Libyan foreign minister, Koussa met Foreign Office and Scottish government officials at least twice in 2008 and 2009 to negotiate Megrahi's release from Greenock prison. Koussa visited Megrahi in jail. Megrahi's lawyer, Tony Kelly, has declined to comment on the latest developments. 
  
 Swire said the weight of evidence pointed to Syria as the main culprit but "within the Libyan regime [Koussa] is in the best position of anyone other than Gaddafi himself to tell us what the regime knows or did. He would be a peerless source of information". 
  
 Detective Superintendent Mickey Dalgliesh, who is in charge of the Lockerbie case at Dumfries and Galloway police, said the Crown Office request to interview Koussa was "in line with our position that the investigation into the Lockerbie bombing remains open and we are determined to pursue all relevant lines of inquiry". 
  
 Alex Salmond, the first minister of Scotland, said the Crown Office request was "an extremely positive step forward". Koussa "may well have important information to reveal which can assist what has always remained a live investigation". 
  
 "Megrahi was convicted by a Scottish court on the basis that he was a Libyan intelligence officer and that he did not act alone. This welcome announcement by the Crown Office, and the intention of Dumfries and Galloway police to interview him, will hopefully lead to further information and lines of inquiry coming to light about the Lockerbie atrocity," he said. 
  
 Libya rebels insist on prosecuting Koussa 
  
  
  
 Mustafa Gheriani, a spokesman for the Libyan revolutionary council, has said the rebels are not bent on revenge against the regime's officials but some of Gaddafi's closest associates "have a lot of blood on their hands" and must stand trial. 
  
 Speaking from the rebel capital, Benghazi, Gheriani said Koussa had been partly responsible for assassinating opposition figures in exile, murderous internal repression and Lockerbie. 
  
 "We want to bring him to court," Gheriani said. "This guy has so much blood on his hands. There are documented killings, torturing. There's documentation of what Moussa Koussa has done. We want him tried by Libyan people. 
  
 "I believe once we have our government 100% in control in Libya, things are normalised, we want him tried here. I think international law gives us that right." 
  
 Gheriani said it was up to Britain to decide whether to arrest Koussa in the meantime. Koussa's arrival in London was evidence that Gaddafi's regime was "starting to crumble". He expected other senior officials to follow. 
  
 "He is a very, very major person to defect. Gaddafi trusted him more than some of his sons. Now Gaddafi doesn't even trust his own people any more," Gheriani said. 
  
 Gheriani said a senior military official in Kufra, Colonel Saleh al-Zaroug, had defected to the rebels. He had served in an army division commanded by one of Gaddafi's sons. The defection was impossible to confirm. 
  
 Hague said Koussa had come to the UK on a private plane from Tunisia having left Libya of his own free will. "Gaddafi must be thinking to himself: 'Who will be the next to walk away?'" Hague said. 
  
 It would not be "helpful to advertise" whether other senior members of the regime planned to quit, Hague said, but he believed it was likely that many opposed Gaddafi's actions. Koussa was in a secure place in the UK and talking voluntarily to British officials, including staff at Britain's Tripoli embassy now based in London. |||||
Solution:
The defection of Libyan Foreign Minister Moussa Koussa to Britain may not spell the end of his trouble: Scottish prosecutors want to interview him to determine whether he played a role in the 1988 bombing of Pam Am Flight 103 over Lockerbie, reports the Wall Street Journal. British officials, meanwhile, say they haven't offered him immunity. Koussa—who had been one of Moammar Gadhafi's key henchmen for decades—has never been indicted in the bombing, but opposition leaders have long maintained that he helped plan it. If he dodges the Scottish inquiry, another looms. Libyan rebels want him returned to the country once Gadhafi falls so he can be charged with murder and crimes against humanity, notes the Guardian.