Not For Disclosure

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Product details

  • ISBN 9781529979961
  • Weight: 496g
  • Dimensions: 163 x 243mm
  • Publication Date: 11 Jun 2026
  • Publisher: Cornerstone
  • Publication City/Country: GB
  • Product Form: Hardback
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THE FULL DISCLOSURE THE U.S. GOVERNMENT WILL NEVER REVEAL - the most serious and rigorously sourced book ever published on UFOS by a credible, world expert. A hidden history to challenge everything you think you know.

‘Caplan is one of the greatest legal minds in the world’ Daily Mail

‘A very important book’ Talk TV

‘Sceptics like me have no choice but to read this and decide if we ought to think again’ Jeffrey Archer

For over fifty years, Jonathan Caplan KC has gathered extraordinary testimony from scientists, intelligence officers, politicians and military insiders across the world – assembling what may be the most comprehensive body of evidence yet of a reality long denied. When former US intelligence officer David Grusch testified under oath to Congress in 2023 that the United States possesses crashed non-human craft, global attention shifted overnight. But the full story has been kept from the public. Until now.

Caplan uncovers a pattern of secrecy stretching from covert Cold War programmes to alleged presidential briefings and clandestine recovery operations. Spanning sightings, encounters and abductions, and drawing on declassified documents, eyewitness testimony and insider claims, the book explores explosive allegations linking UAP knowledge to figures such as JFK, alongside newly revealed material on secret meetings involving Truman-era officials and the shadowy ‘Majestic 12’ group. Some who came close to the truth, Caplan suggests, paid the ultimate price.

Yet the most profound question remains: are these phenomena visitors – or something far closer, watching and interacting with us in ways we barely understand?

Meticulously researched, utterly gripping and impossible to ignore, Not For Disclosure is a landmark work that pulls back the curtain on what could be the greatest cover-up in human history.

Jonathan Caplan is a King's Counsel (KC) and one of the UK's premier barristers. Caplan has utilised his career experience to seek out the most reliable UAP evidence and to evaluate information from highly placed contacts. Caplan has studied the phenomenon for over fifty years and is a respected voice on the subject. For many years, he served on the editorial board of a leading international UFO journal with distinguished correspondents. Caplan has observed the subject evolve from the simple concept of visiting benevolent ETs to complex issues that cover not just deep space but folklore, the paranormal, consciousness and even our concepts of reality and of life and death.

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