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].
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Question: "Science created the ability to destroy ourselves and the planet several times in a matter of hours " said Castro in an editorial published by local media. "The greatest contradiction in our age is the ability of our species to destroy itself and its inability to govern itself at the same time."
 In the editorial entitled "The madness of our time." Castro listed the catastrophic effects of global warming and pointed to threats posed by new weapons and military technologies of the United States.
 He criticized the United States for developing new high-tech military devices such as the recent launch of an unmanned "space plane" by U.S.air force from Cape Canaveral.
 These moves "reveal the true philosophy of the United States " said Castro. He also described the role of U.S. President Barack Obama at the Climate Change Summit in Copenhagen as "disappointing" and a "painful deception" to the public.
Castro. He also described the role of U.S. President Barack Obama at the Climate Change Summit in Copenhagen as "disappointing" and a "painful deception" to the public.
 Castro said global warming will lead to the rise of sea levels  the decrease of drinkable water and arable land. It will also result in the pollution of oceans and extinction of many species in a few decades.
 Castro noted that genetic manipulation and chemical fertilizers helped meet people's basic needs for food  and he questioned if they can produce  healthy food fit for consumption. He also stressed the need for protecting non-renewable vital minerals and energy.
 Castro  83  handed over power to his brother Raul Castro for health reasons in June 2006. Since then he has devoted to work on what he called his "reflections" on issues of global importance through editorials.

Answer: Fidel Castro


Question: Spencer Stone  Anthony Sadler and Alek Skarlatos had been thrilled when Clint Eastwood bought the rights to their book about the events on a Thalys high speed train in northern France in August 2015.
Image copyright  AFP Image caption Spencer Stone  leaves the Lesquin hospital after treatment
Image copyright Warner Bros Image caption Judy Greer (left) plays  Spencer Stone 's mother and Jenna Fischer plays that of Alek Skarlatos
"It was at a ceremony the year after the attack  " Stone  recalls. "And afterwards we all huddled up and decided we needed to say something to  him . So we went back into the greenroom and said we have this book coming out and you should make the movie! So Mr Eastwood said to send  him  the book and gave us  his  address."
 Image copyright Warner Bros Image caption Spencer Stone  opted for an army career as did Alek Skarlatos
After school both  Stone and Skarlatos  opted for military careers - Stone in the US Air Force and Skarlatos in the Oregon Army National Guard. Did that military experience influence their split-second decision to try to take down El-Khazzani when he was intent on carnage?
 Image copyright Warner Bros Image caption Spencer Stone (right)  says  he  was driven by fear for  his  life
Stone  who moments before had been dozing  charged down the train aisle as El-Khazzani levelled an assault rifle at  him .
But the weapon didn't fire  possibly because a bullet was faulty.  Stone  ended up with severe gashes to  his  neck and thumb after El-Khazzani lashed out with a box-cutter as they struggled hand-to-hand. Skarlatos and Sadler came to  Stone 's assistance.
"I wasn't really thinking about everyone else: I was just thinking about  myself  " says  Stone . "I just saw that something had to be done.

Answer: Spencer Stone


Question: Those accusations by anti-Syrian Lebanese politicians that quickly followed the killing of former Prime Minister Rafik Hariri galvanized hundreds of thousands of their supporters to take to the streets in a powerful protest movement. It drove tens of thousands of Syrian troops out of Lebanon and ended decades of Syrian domination over its smaller neighbor.
 The first U.N. investigator into the Hariri assassination  Germany's Detlev Mehlis  said the plot's complexity suggested a role by the Syrian intelligence services and its pro-Syria Lebanese counterpart. But the two chief investigators who followed Mehlis have worked quietly and have not named any individuals or countries as suspects.
 Saad Hariri's comments Monday are part of a remarkable reconciliation between Lebanon and Syria. Hariri has worked to mend ties with Damascus over the past year  traveling to Syria five times.
 Hariri's explicit repudiation of blaming Syria removes one major obstacle to closer ties. It also comes at a time when Hariri and his Western-backed political bloc are struggling to maintain momentum as Syria's allies in Lebanon -- the Shiite militant group Hezbollah -- gain influence.

Answer:
Rafik Hariri