For five decades, Jonathan Caplan KC (King’s Counsel) has been pulling together an extraordinary body of evidence about the existence of UAPs, and what he believes to be the world’s greatest ever cover up. Public perception of the UAP issue changed radically in July 2023 when David Grusch – a former Air Force intelligence officer – went public to US Congress under oath on live television that the United States was in possession of crashed non-human craft. His evidence ignited huge interest around the world. Pressure is mounting for the full story to be told, and ‘Not For Disclosure’ is a landmark book on a subject that the public can no longer ignore. In his quest for the full story, Caplan has travelled over the years to meet inside sources, including scientists, politicians, intelligence officers and ex special forces, in Washington, Israel and elsewhere.