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].

[Q]: Back in 2015  then  Vice President Joe Biden  appeared on The Late Show and host Stephen Colbert peppered  him  with questions about whether  he ’d run for president in 2016. However   Biden  was still reeling from the death of  his  son  Beau  and  Biden  said that  he  was unable to commit “110 per cent” to the task of running for president  despite the fact that Beau had urged  him  to continue to serve.  Biden  returned to The Late Show on Monday night and Colbert was ready for  him . “I’m not gonna ask ” said Colbert  before immediately asking  Biden  if  he  planned to run in 2020.
As for that whole 2020 question   Biden  wouldn’t answer other than to say that “the country’s never been more divided  we need a unifier.”
 He  also provided an update on  his  thoughts on President Donald Trump.
When  Biden  was on the show back in 2015   Biden  suggested that the American public give Trump a shot  before judging  him . “Have we given  him  enough of a shot at this point?” Colbert asked.  Biden  said  he  reached  his  tipping point with Trump after  his  “deafening” during the white nationalist rally in Charlottesville  Va.  where neo-Nazis were chanting “the same exact bile” against Jews that the Nazis used in the 1930s in Germany and a protester was killed by a white supremacist. Biden said there is now “a battle for the soul of this country ” and called for Americans to say “enough is enough.”
They also discussed the risks of “normalizing” Trump’s behavior. “What do you think has changed about the presidency with him being President?” asked Colbert. “How will this influence future presidencies?”  Biden  replied  “God willing  this will go down as the single exception in American history.”
When Colbert pressed him about who such a unifier could be   Biden  didn’t give any specifics  but he said there’s a whole new generation of Democrats entering politics who are ready to step up.
[A]: Joe Biden Says This Was the Turning Point for Trump


[Q]: Rhetoric between President Donald Trump and North Korean leader Kim Jong Un has escalated. In response  North Korea’s foreign minister reportedly said the nation may set off the “most powerful” hydrogen bomb detonation in the Pacific. No other details were provided  but at face value  such a blast would be 1 000 times as powerful as the Hiroshima bombing. Atmospheric testing of nuclear weapons can lead to multiple dangerous scenarios.
Ri Yong Ho  the foreign minister of the isolated nation  reportedly told journalists that North Korean leader Kim Jong Un is considering such a test blast.
“It could be the most powerful detonation of an H-bomb in the Pacific ” Yong Ho told reporters at the United Nations in New York on Thursday  according to a story by South Korea’s Yonhap News Agency. “We have no idea about what actions could be taken as it will be ordered by leader Kim Jong Un.”
caption North Korean ruler Kim Jong Un stands before what may be a miniaturized thermonuclear weapon. source Thomson Reuters
The suggestion came in response to bellicose rhetoric exchanged between US President Donald Trump and  Jong Un .
In a speech before the United Nations General Assembly on Tuesday  Trump called  Jong Un  a suicidal “rocket man” and threatened to “totally destroy” North Korea if the US is “forced to defend itself or its allies.”  Jong Un  allegedly responded with a written statement  in which he called Trump a “mentally deranged US dotard” and said that “a frightened dog barks louder.”
“Trump is basically creating audience costs for  Kim  to back down ” Jeffrey Lewis  director of the East Asia Nonproliferation Program at the Middlebury Institute of International Studies at Monterey  told Vox. “If you dare  Kim   it creates pressure for  him  to respond with  his  own provocation.”
“The stakes and heat in this conflict have not been this high since the Korean War ” Tristan Webb  a senior analyst for NK News  said in a story published by the outlet on Friday. “Kim Jong Un said in July that the … showdown was entering its final phase. He appears psychologically prepared for conflict.”
[A]: Here's what could happen if North Korea sets off a huge nuclear explosion in the Pacific Ocean Business Insider


[Q]: These American billionaires also share a few quirks: Microsoft founder Bill Gates  Facebook CEO Mark Zuckerberg   Oracle founder Larry Ellison  dropped out of college. Jeff Bezos  Larry Page and Sergey Brin all went to Montessori schools  where children are encouraged to think independently and creatively rather than following traditional rules. It seems  too  that billionaires really like houses in Hawaii.
As is the case with the richest women in America  the richest people in America donate a lot of money to causes they care about. Some of the men on this list have donated hundreds of millions into research designed to improve human lifespan and eradicate dangerous diseases  such as Alzheimerâs disease and cancer. Warren Buffett  Gates  Zuckerberg  and  Ellison  have gone a step further and promised to give their fortunes away as part of The Giving Pledge  an initiative designed by Buffett and Gates to encourage billionaires to funnel their vast wealth to philanthropy.
6.  Larry Ellison
Oracle CEO Larry Ellison  speaks during an event at the company's headquarters in Redwood City  Calif. in 2014 David Paul Morris-Bloomberg via Getty Images
 Ellison   73 â another college dropout â co-founded the software firm Oracle in 1977. In addition to owning about 25% of the company  he also owns the entire Hawaiian island of Lanai  a sailing team and even an entire tennis tournament  the New York Times reports.
While known for living large (the billionaire owns a 288-foot yatch)   Ellison  started out with modest ambitions.  His  parents  who adopted  him  when  he  was nine months old  wanted  him  to be a doctor  but  he  left school when  he  realized medicine didnât interest  him .  He  moved to California and worked as a computer programmer and a rock-climbing instructor and river guide  according to the Times. At this point   Ellison  said  he  was âpretty happy with  his  life.â
But after a series of jobs   he  became part of a company working to establish a new type of software database. That company would become Oracle  now one of the largest software companies in the world.
 Ellison   like other titans on this list  is interested in extending human lifespan  and has given over $330 million for research into aging and related diseases.
Four-times divorced   Ellison  has two adult children and calls  his  $70 million Woodside  Calif. estate home. However   Ellison âs massive real estate portfolio means  he  never spends much time in one place.  He  owns additional properties in Japan  San Francisco  Malibu  Lake Tahoe and Rhode Island.
[A]:
The 10 Richest People in America