Who is ‘the NSA slayer’ Larry Klayman?

"Larry Klayman, former federal prosecutor for the Justice Department and the founder of Judicial Watch and now Freedom Watch"
http://www.larryklayman.com/article.php?id=4

"District court proceedings in Klayman v. Obama ended with a bang back in December, with D.C. District Court Judge Richard Leon ruling that bulk metadata collection under Section 215 of the Patriot Act is unconstitutional. And it looks like the expected drama at the appellate court level has already begun. The government has asked for more time on its briefings to assimilate the major changes in policy on 215 matters that President Obama has now announced---and Larry Klayman is, for his part, giving no quarter."
https://www.lawfareblog.com/klayman-v-obama-government-moves-more-time-appellees-oppose

"A new class-action claim against President Obama and the National Security Agency’s spying on Americans could end up with 100 million or more plaintiffs, according to lawyer Larry Klayman, who earlier won a judgment in federal court that the NSA program likely is unconstitutional."
https://dailyoddsandends.wordpress.com/2014/01/25/100-million-citizens-join-nsa-slayers-fight/

"As the former head of Judicial Watch, Klayman may be best known for filing numerous lawsuits against the Clinton Administration during the 1990s – especially while the Monica Lewinsky scandal was unfolding. In 1998, Newsweek wrote an article that claimed Klayman had once sued his mother - information that he says was given to the magazine by the Clinton administration. Klayman, a big proponent of the Tea Party and its ideals, has in the past questioned President Obama's assertions that he was born in the United States. Now, however, Klayman is back in the public eye as the man who challenged in court the legality of the NSA's authority to keep and store the metadata of American citizens – and won."
http://venturacountyteaparty.ning.com/m/blogpost?id=5170468%3ABlogPost%3A103648

"U.S. intelligence agencies have “harvested” the personal and private data of “hundreds of federal officials and judges, including Chief Justice John Roberts and Justice Ruth Bader Ginsberg,” charges a legal brief filed by Larry Klayman, the attorney who has come to be known as “the NSA slayer” for his successful legal battles against the National Security Agency."
http://silveristhenew.com/2015/05/03/us-larry-klayman-founder-of-freedom-watch-and-judicial-watch-filed-a-motion-to-re-activate-a-court-order-requiring-the-nsa-to-stop-its-data-collection-program/

"Allegations that U.S. Supreme Court Chief Justice John Roberts was blackmailed by the National Security Agency (NSA) to give the okay and approve Obamacare was reported by Larry Klayman, the attorney who has come to be known as “the NSA slayer” for his successful legal battles against the National Security Agency was reported by WND on Sunday."
https://conservativefiringline.com/u-s-supreme-court-chief-justice-roberts-blackmailed-approve-obamacare/

"Was U.S. Chief Justice John Roberts blackmailed into approving of Obamacare by the NSA and CIA?

That suggestion was recently made by Larry Klayman, an attorney who has won legal battles against the National Security Agency and has come to be known as ‘the NSA slayer’."
https://www.truthandaction.org/justice-roberts-blackmailed-approving-obamacare/

Alex Jones | Larry Klayman | How to Stop The NSA