Overview
Top barrister Jonathan Caplan KC, who has spent more than five decades investigating unidentified aerial phenomena (UAP), released a detailed account of his research on Sunday, May 31, 2026. In a statement circulated widely on the #ufotwitter community, Caplan alleges that confidential sources within the United States Central Intelligence Agency (CIA), Chinese intelligence services, and alleged extraterrestrial contacts have provided “undeniable evidence” of a coordinated effort to conceal advanced aerial technology. The claims were published by the Daily Mail and have sparked a mixed response from government officials, academic researchers, and UFO enthusiasts.
Key Claims
Caplan asserts that his sources—identified only as senior intelligence officers and former aerospace engineers—have disclosed three primary findings:
CIA Involvement – According to Caplan, a classified CIA program codenamed “Project Eclipse” has been tracking and reverse‑engineering non‑human craft since the late 1970s. He claims the agency has routinely de‑classified select footage to the public while withholding the most sensitive data.
Chinese Collaboration – The barrister alleges that Beijing’s Ministry of State Security has been running a parallel effort, dubbed “Sky‑Dragon,” to acquire UAP technology through covert operations and alleged reverse‑engineered components recovered from crash sites. Caplan says Chinese officials have shared limited intelligence with the CIA in a “mutually beneficial, yet highly secretive, exchange.”
Alien Contact – Caplan’s most controversial point is that at least one source, a former senior analyst who worked on the 2023 Pentagon UAP report, confirmed that “material evidence” points to a non‑Earth origin for several recovered objects. He describes the evidence as “material samples, flight‑data recordings, and corroborated eyewitness testimony that together form a coherent picture of extraterrestrial technology.”
Caplan emphasizes that the evidence “has been vetted through multiple layers of clearance” and that “the pattern of concealment is deliberate, not accidental.”
Sources and Verification
Caplan, a Queen’s Counsel who has previously represented high‑profile clients in national security cases, declined to name his informants, citing “national security and personal safety.” He provided a handful of de‑classified documents to the Daily Mail, including excerpts of a 1994 CIA memorandum referencing “unidentified aerial vehicles of unknown origin” and a 2022 Chinese Ministry of Defense briefing that mentions “foreign advanced aerial systems.” Independent verification of these documents has not yet been confirmed by either government.
The Daily Mail notes that the author “has not been able to independently corroborate the most extraordinary claims” and that “no official agency has responded to requests for comment.” Researchers at the University of Colorado’s Center for the Study of UAP have expressed cautious interest, stating that “any new primary sources merit careful examination, but extraordinary claims require extraordinary evidence.”
Context and Reactions
Caplan’s revelations arrive amid a growing public appetite for transparency on UAPs. In 2023, the U.S. Office of the Director of National Intelligence released a preliminary assessment acknowledging “unidentified aerial phenomena that may pose a national security challenge.” Since then, several congressional hearings have called for greater disclosure, though classified constraints remain.
The scientific community remains skeptical. Dr. Megan Liu, an aerospace physicist at MIT, warned that “without peer‑reviewed data, claims of alien technology remain speculative.” Conversely, UFO advocacy groups such as the Mutual UFO Network (MUFON) have welcomed Caplan’s statements, urging agencies to release the alleged “Project Eclipse” files.
On social media, the #ufotwitter thread generated over 12,000 retweets within hours, with commentators ranging from “finally some real evidence” to “another conspiracy without proof.” No official statement from the CIA or China’s Ministry of State Security has been issued as of this writing.
Outlook
While Caplan’s allegations have reignited debate over governmental secrecy and the possibility of extraterrestrial technology, the lack of independently verifiable evidence means the story remains in the realm of allegation rather than confirmed fact. Analysts suggest that any forthcoming disclosures will likely be incremental, constrained by classification rules and diplomatic sensitivities.
For now, the conversation hinges on whether Caplan’s “confidential sources” will come forward with more concrete proof, and whether legislative pressure will compel intelligence agencies to declassify additional material. As the UAP discourse evolves, journalists and researchers alike will be watching closely for any tangible data that can move the discussion from speculation to substantiated inquiry.
