instruction:
Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].
question:
MURDEROUS  thin-skinned and in possession of nuclear weapons  the North Korean dictator   Kim Jong Un   has one good deed to  his  name:  he  has united America and China. Max Baucus  Americaâs ambassador to Beijing until January 2017  recalls the Chinese president  Xi Jinping  privately expressing âdisgustâ at Mr Kimâs reckless pursuit of nukes and missiles to carry them to other continents. Mr Xiâs frustration with North Koreaâs hereditary despot stands out as âthe strongest statement that I have ever heard Xi makeâ  says Mr Baucus. China has never sounded as closely aligned with America when it comes to using sanctions and diplomatic pressure  in a last-ditch bid to change how Mr Kim calculates his regimeâs interests.
Unfortunately for relations between the worldâs two biggest economies  China will hate the next steps that America is likely to take on North Korea. Evan Medeiros  until 2015 the senior director for Asia in Barack Obamaâs National Security Council  says that when the Chinese accuse America of refusing to engage in talks with the regime  this is largely âposturingâ. But behind it lies a truth  that âsanctions wonât stop North Koreaâ. When battling the proliferation of the deadliest weapons  sanctions are always in a race with technology  says Mr Medeiros  now with the Eurasia Group  a consultancy. âKim Jong Un is close to grasping the brass ring. We have probably lost the race and need to think about deterrence.â This could include deploying new missiles and missile-defence systems in South Korea and Japan  and perhaps another aircraft-carrier in the region.
Still  cold-war theories of deterrence are being dusted off  with such jargon as âsecond-strike capabilityââthe certainty that a country attacked with nuclear weapons can retaliate massively. Douglas Paal  a senior Asia hand in the Reagan White House and both Bush administrations  approves of the Senate plan to place more interceptors in Alaska  in part to gain leverage over China. âWe need to layer up more missile defence. China needs to see that their second-strike capacity is really deteriorating  which hurts them.â Mr Paal  who runs the Asia programme at the Carnegie Endowment for International Peace  a think-tank  is in frequent contact with envoys of governments including Chinaâs and  recently  North Koreaâs. He concedes the need for talks with the  Kim  regime  alongside containment and deterrence  but notes that in previous negotiations  North Korea wanted an end to American defence alliances in Asia and to Americaâs troop presence in South Korea: âSo we canât get there.â
A policy of containment would not just strain relations with China as new American weapons bristled in Asia. Global non-proliferation regimes would be tested  not least because a North Korea facing crippling sanctions might see selling nuclear technology as a lifeline. Perhaps Chinaâs greatest nightmare involves Japan feeling compelled to build nuclear weapons (it could quickly develop the technology). A Chinese build-up of warheads in response could result in India and then Pakistan increasing their stockpiles. The unity fostered by  Mr Kim  may thus prove short-lived. If  he  builds the arsenal  he  wants  China and America will be sincere in their shared dismay. But if America then prepares to contain him  a whole new Sino-American stand-off may begin.
answer:
Kim Jong Un


question:
When  Ava Gardner  first met Frank Sinatra in 1943   the duo  couldn’t have suspected that six years later  after the actress faced two disastrous divorces before the age of 25  they would happily dive into a controversial love affair.
Sinatra may have still been married  but an insistent  Gardner  reportedly made the singer ask Nancy for a divorce. The mother of  his  three young children initially refused  but she eventually granted Sinatra a divorce in 1951. One week after  his  divorce was final  Sinatra married Gardner.
“I don’t think [Frank] wanted to hurt Nancy ” said Uzarowski. “But at the same time  I don’t think  he  went out of  his  way to hide [the affair]. They did get into quite a lot of trouble with the public. There were angry letters  hate mail coming in every week to the studio.
“She really liked  Ava  ” said Uzarowski. “She could have had a very bad attitude towards  Ava  because she basically stole her father away from her mother. She could have been resentful. But there was none of that… Tina and Nancy were both very friendly with  Ava .”
“The first time she met  Ava   when she was a little girl of 4 or 5   Ava  got down on her knees so she [could] have eye contact with her ” said Uzarowski. “And she really treated her with a lot of attention and a lot of warmth. That obviously really impressed her as a child. She still remembered that after all of these years.”
Still   Gardner  and Sinatra wouldn’t share a happily ever after. Their marriage was plagued by jealousy  fiery tempers and insecurity. They also publicly battled. The relationship was reportedly so tumultuous that  Gardner  had two abortions during their marriage  which she later publicly admitted.
According to Tina   Gardner  later wondered what the couple could have done differently.
The marriage lasted for less than two years. In 1953  MGM announced their separation. Then in 1957   Gardner  and Sinatra were divorced. However  they apparently never got over each other. There were even rumors of a possible reconciliation.
 Gardner  would move on and live a quiet life in London for more than 30 years  seeking salvation from the paparazzi.  She  never remarried.
One of Sinatra’s biggest tragedies would come in 1990 when  Gardner  died at age 67 of pneumonia.
“[Tina] said it was such a huge blow to  him  ” said Uzarowski. “ She  said  he  never got over it… It was such a huge shock to  him .  She  was the love of  his  life  by all accounts. When  she  did pass away   he  was devastated.
"Tina said the actual pain  he  experienced was so much more.  He  wouldn’t share that with anyone because it was too personal… There was a story that Nancy said in another book that  he  just locked  himself  in a room for 24 hours… and wouldn’t speak to anyone.”
answer:
Ava Gardner


question:
PARIS (Reuters) - Airbus (AIR.PA) has embarked on a fresh search for a sales chief to take over from soon-to-retire John Leahy as the aerospace group seeks a clean break from turmoil over investigations into the use of middlemen  said three people familiar with the plans.
FILE PHOTO:  Airbus Chief Operating Officer-Customers John Leahy  delivers  his  speech during the annual Airbus Commercial Press Briefing in Blagnac  Southwestern France  January 11  2017. Picture taken January 11  2017.  REUTERS/Regis Duvignau/File Photo
Leahy’s  deputy  Executive Vice-President Kiran Rao  had been identified as  Leahy ’s successor earlier this year  but his appointment to one of the industry’s most visible jobs was never confirmed as  Leahy ’s retirement slipped towards end-year.
Whoever replaces  Leahy  will face the job of repairing poor morale and absorbing the CSeries without upsetting demand for bread-and-butter larger jets offered by Airbus and Boeing.
But his replacement is unlikely to enjoy the same latitude as  Leahy  in negotiations or influence over industrial moves.
answer:

John Leahy