Question: What is the birthdate of this American business magnate, investor, and philanthropist, who is featured in the documentary Nobody Speaks: Trials of the Free Press, regarding his secret purchase of the Las Vegas Review Journal?

Context paragraphs:
Sheldon Adelson: Sheldon Gary Adelson (pronounced ; born August 4, 1933) is an American business magnate, investor, and philanthropist.  He is the founder, chairman and chief executive officer of Las Vegas Sands Corporation, which owns the Marina Bay Sands in Singapore, and is the parent company of Venetian Macao Limited, which operates The Venetian Resort Hotel Casino and the Sands Expo and Convention Center.  He also owns the Israeli daily newspaper "Israel Hayom", and the "Las Vegas Review-Journal".  Adelson, a lifelong donor and philanthropist to a variety of causes, founded with his wife's initiative the Adelson Foundation.  He is a member of the Republican Party.

Bill Gates: William Henry Gates III (born October 28, 1955) is a co-founder of the Microsoft Corporation and is an American business magnate, investor, author and philanthropist.

Paul Allen: Paul Gardner Allen (born January 21, 1953) is an American business magnate, investor and philanthropist.  He is known for co-founding Microsoft alongside Bill Gates.  As of June 2017, he is estimated to be the 46th richest person in the world, with an estimated net worth of $20.7 billion.

Nobody Speak: Trials of the Free Press: Nobody Speak: Trials of the Free Press is a 2017 Netflix documentary directed by Brian Knappenberger.  The documentary is themed around the effects of big money on American journalism.  The documentary focuses on two incidents: Peter Thiel financing wrestler Hulk Hogan's lawsuit against Gawker Media, and casino owner Sheldon Adelson's secret purchase of the "Las Vegas Review-Journal".

Ben Scott (policy advisor): Ben Scott is a Senior Advisor to the Open Technology Institute at the New America Foundation in Washington, D.C. and a Visiting Fellow at the Stiftung Neue Verantwortung in Berlin.  Previously, he was a Policy Advisor for Innovation at the US Department of State where he worked at the intersection of technology and foreign policy.  In a small team of advisors to Secretary of State Hillary Clinton, he worked to help steward the 21st Century Statecraft agenda with a focus on technology policy, social media and development.  Prior to joining the State Department, for six years he led the Washington office for Free Press, a non-profit organization dealing exclusively with media and communications policy.  As policy director for Free Press, he headed a team of lawyers, researchers, and advocates, and directed a public interest policy agenda to expand affordable access to an open Internet and to foster more public service journalism.  He was frequently called as an expert witness before the U.S. Congress.  Before joining Free Press, he worked as a legislative aide handling telecommunications policy for then-Rep.  Bernie Sanders (I-Vt.)  in the U.S. House of Representatives.  He holds a PhD in communications from the University of Illinois.  Ben is a 1995 graduate of the University of Illinois Laboratory High School.  He is the author of several scholarly articles on American journalism history and the politics of media regulation as well as co-editor of two books.

Las Vegas Uncork'd: Las Vegas Uncork'd (also referred to as Vegas Uncork'd and Vegas Uncorked) is an annual culinary and wine event in Las Vegas, Nevada.  The concept was developed by the Las Vegas Convention and Visitors Authority, their advertising agency R&R Partners and Las Vegas resort partners who originally considered a number of magazine partners such as Bon Appetit, Food & Wine and Gourmet.  Bon Appetit was selected as the magazine partner after a review with each magazine.  The event was launched in 2007 by the Las Vegas Convention and Visitors Authority, "Bon Appétit" magazine led by Editor-in-Chief Barbara Fairchild and co-creator and Executive Director Rob O'Keefe who led the first five years of development of what Eater.com called "the world's most innovative culinary event".  Las Vegas resort partners over the years include Bellagio, Caesars Palace and Wynn Las Vegas, MGM Grand, Mandalay Bay, The Venetian, Las Vegas and The Palazzo and each year the event features more than 80 celebrated chefs and over 25 events occurring over a spectacular four-day weekend.

Journal &amp; Courier: The Lafayette Journal & Courier is a daily newspaper owned by the Gannett Company, Inc., serving Lafayette, Indiana, and the surrounding communities.  It was established in 1920 through the merger of two local papers, the "Journal and Free Press" (established in 1829 under the name John B. Semans' Free Press) and the "Courier" (established in 1845).

Warren Buffett: Warren Edward Buffett ( ; born August 30, 1930) is an American business magnate, investor, and philanthropist.  Buffett serves as the Chief Executive Officer and Chairman of Berkshire Hathaway.  He is considered by some to be one of the most successful investors in the world, and as of August 2017 is the second wealthiest person in the United States, and the fourth wealthiest in the world, with a total net worth of $76.9 billion.

Age of Secrets: Age of Secrets: The Conspiracy that Toppled Richard Nixon and the Hidden Death of Howard Hughes is a conspiracy theory-oriented biography of Howard Hughes personal advisor John H. Meier.  It is written by newspaper reporter Gerald Bellett and was published by the Las Vegas Free Press in 2015.  The book argues that Meier was one of the people who played a role in affecting President Richard Nixon's resignation in the wake of the Watergate scandal.  It also details how Meier was supposedly pursued for 20 years by the CIA, the Hughes organization, as well as Nixon sympathizers.  The book includes an excerpt from Meier's diary regarding what he says is his knowledge regarding the assassination of Robert F. Kennedy.

Debra Saunders: Debra J. Saunders (born 1954) is the White House correspondent for the "Las Vegas Review Journal".  Prior to taking that position she was a political satirist for the "San Francisco Chronicle" She is syndicated by Creators Syndicate, and is carried by newspapers throughout the country and on townhall.com.

Supporting paragraphs: Nobody Speak: Trials of the Free Press Sheldon Adelson
Answer: August 4, 1933