Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

[EX Q]: Bush as president occasionally phoned Clinton
 George W. Bush had a special phone friend during his White House years: Bill Clinton.
 Asked on CBS television's "Face the Nation" whether it was true that he often called Clinton  Bush replied: "I don't know about often  but I did. I called him. He didn't call me because he knows how busy a president is. I called him and we chatted on occasion."
 "I was always pleased when he called me " Clinton said as he sat beside Bush for the interview. "I make it a practice never to bother the president. I don't call President Obama either. ... They got plenty to do."
Neither Republican Bush nor Democrat Clinton said just what they discussed.
 "I was always pleased when he called me " Clinton said as he sat beside Bush for the interview. "I make it a practice never to bother the president. I don't call President Obama either. ... They got plenty to do."
Democrat Clinton said just what they discussed.
 "I was always pleased when he called me " Clinton said as he sat beside Bush for the interview. "I make it a practice never to bother the president. I don't call President Obama either. ... They got plenty to do."
 Bush's eight years in office followed Clinton's two terms. While poles apart politically  the ex-presidents said they consider themselves to be friends.
 "We have developed a very honest  good friendship " Clinton said. "And we've made our disagreements respectful and we've had a good time doing it."
[EX A]: Bush as president occasionally phoned Clinton

[EX Q]: South Africa's former police chief and ex-president of Interpol Jackie Selebi was convicted Friday of corruption for accepting bribes from organised crime.
 Selebi had denied the charges against him  which he said were part of a broader political conspiracy that reached to the top levels of government.
 The trial laid out his startling links with the criminal underworld  in particular with convicted drug smuggler Glenn Agliotti who was accused of giving him cash and luxury gifts.
 Selebi was accused of taking bribes from Agliotti totalling more than 1.2 million rand (166 000 dollars  122 000 euros) between 2000 and 2005.
 What finally emerged was a picture of Agliotti  who was also accused in the murder of a local mining magnate  indulging Selebi's fondness for designer clothing  which the police chief rewarded by feeding Agliotti inside information.
 While in office  Selebi acknowledged his friendship with Agliotti saying "Glenn Agliotti is my friend  finish and klaar (end of story)."
 It was Agliotti's drugs conviction that lifted the lid on Selebi's activities  sparking a lengthy investigation into his life.
 His first arrest warrant was issued in September 2007 but he was not charged  reportedly due to protection by then-president Thabo Mbeki.
 On January 11  2008  he was charged with corruption and defeating the ends of justice due to his friendship with Agliotti.
[EX A]: South Africa's former top cop convicted of corruption

[EX Q]: The documents from the Makeyev Rocket Design Bureau include marketing brochures for an array of top-of-the-line Soviet missiles that were able to deliver nuclear warheads to U.S. cities. Initially designed for the Soviet navyâs nuclear submarines  some of the models offered for sale could be launched from a large boat  a submerged barge  or a capsule dropped into the ocean  negating the need for a modern submarine fleet.
âThe missile could be floated and ignited without any need for a launch platform â recalled Kyle Gillman  the former executive vice president of the U.S.-Russian joint venture known as Sea Launch Investors. Gillman  who negotiated the business agreement with Russiaâs Makeyev scientists  reviewed and authenticated the documents obtained by The Washington Post.
The evidence that the designs eventually ended up in North Korea is partly circumstantial. In late 1992  with  the U.S.-Russian project flagging  more than 60 Russian missile scientists and family members from the Makeyev facility  were arrested at Moscowâs Sheremetyevo International Airport as  they  prepared to travel to Pyongyang to work as consultants. U.S.  Russian and South Korean intelligence officials later concluded that some of the scientists eventually succeeded in traveling to North Korea to offer blueprints and technical advice for the countryâs missiles program.
But U.S. analysts see more Â­persuasive evidence in the actual missiles that North Korea has put on display over the past two years. In the most striking case  the Â­Hwasong-10  or Musudan  a Â­single-stage missile successfully tested by North Korea in June 2016  appears to use the same engine and many design features as the Soviet Unionâs R-27 Zyb  a submarine-launched ballistic missile designed by Makeyev scientists and advertised in one of the brochures obtained by The Post.
The Americans who founded Sea Launch Investors in 1992 believed that their project could help prevent the poaching of Russian weapons experts by terrorists and rogue states  at least from the community of rocket scientists at  the Makeyev Rocket Design Bureau   the premier Soviet manufacturer of submarine-launched ballistic missiles headquartered in Miass  a small city in Russiaâs southern Ural mountains.
In May of that year  a Protocol of Intent agreement was signed by retired Adm. Thomas Moorer  a former Joint Chiefs chairman and head of the American team  and retired Russian Adm. Fyodor Novoselov  a former deputy fleet commander for shipbuilding and armaments. The joint venture Â­acquired exclusive rights to  Makeyev âs inventory of submarine-launched ballistic missiles  and then developed marketing materials that showcased a line of products that could be converted for use in commercial ventures. These included a missile known as the R-27 Zyb â or âRippleâ â the squat  blunt-nosed workhorse of the Soviet Unionâs Yankee-1 Class submarine fleet  along with larger  more powerful missiles such as the 50-foot-tall R-29 Shtil â or âCalmâ â and the newer  solid-fueled R-39 Rif. The latter two were true intercontinental ballistic missiles with a range of more than 5 000 miles.
As the months passed   Makeyevâs managers  became increasingly frustrated as  their  American partners ran into a series of obstacles  including reservations about whether the joint venture was permissible under U.S.-Russian arms-control agreements. In April 1993  Gen. Colin L. Powell  then the Joint Chiefs chairman  informed Sea Launch Investors that the project could not proceed without a government review and a formal waiver of the Strategic Arms Limitation Treaty. No waiver was granted  and by the spring of 1995  it was clear that the company was at a dead end.
By then  some of the Makeyev drawings and blueprints had apparently gone out the door. The Russian scientists arrested at the Moscow airport acknowledged to investigators that they had been recruited as a group to assist North Korea in building rockets  ostensibly as space boosters for satellites. In âThe Dead Hand â David E. Hoffmanâs Pulitzer Prize-winning history of the last years of the Cold War  a Russian security official describes how the North Koreans systematically chose experts from across  Makeyev âs entire production line  from fuels specialists to engineers who designed the nose cone and payload chamber. The salary offer  $1 200 a month  was 200 times as much as some of the scientists were earning at home.
Other attempts would follow. U.S. and South Korean intelligence officials have confirmed that  Makeyev  scientists eventually did land jobs as consultants for the North Koreans  and technical drawings were passed to Pyongyang  either directly or through intermediaries.
Some of  Makeyev âs missile secrets appear to have left Russia before the joint-venture effort officially disbanded. Still  years later  the companyâs former executive vice president remains convinced that most  if not all  could have been kept locked away if Western governments had acted quickly.
The missile was dubbed the Hwasong-10  or Musudan. But experts noted striking similarities to the R-27 Zyb  or Ripple  manufactured by  the Makeyev Rocket Design Bureau . Two months later  on Aug. 24  2016  North Korea successfully tested the Pukguksong-1  a submarine-launched missile that also incorporates some features from the Zyb. Both models are âgenerally regarded as derived from the designs of the Makeyev Bureauâs R-27 â said Joshua Pollack  an analyst at the James Martin Center for Nonproliferation Studies in Monterey  Calif.
âI have to assume that Makeyev pitched part  if not all  of these concepts and proposals to other interested investors  including the North Koreans â said Michael Elleman  a former missiles scientist and a senior fellow at the International Institute for Strategic Studies  a British think tank.
[EX A]:
Documents shed light on North Koreaâs startling gains in sea