The fourth episode of Secret Squirrel Files explores two very different national security true crime cases—one involving one of the most damaging spies in American history and another centered on a military disappearance that remains unsolved more than three decades later.

First, the episode examines the case of Aldrich Ames, the CIA officer who became a Soviet and Russian double agent during the Cold War. Over nearly a decade, Ames provided classified information that compromised more than 100 intelligence operations and exposed numerous CIA assets. His actions resulted in arrests, executions, and significant damage to U.S. intelligence capabilities at a critical moment in history.

The Ames case also exposed major weaknesses in security clearance vetting, financial monitoring, and insider threat detection. Many of the reforms that shape today’s personnel security and continuous vetting programs can be traced back to the lessons learned from his betrayal.

The episode then shifts to the mysterious disappearance of Army specialist Justin Burgwinkel. In 1993, Burgwinkel vanished after exhibiting increasingly unusual behavior and making cryptic references to secret missions and intelligence-related activities. Friends and family described a young soldier who carried a locked briefcase, made unexplained trips, and hinted that he was involved in something important.

Months after his disappearance, investigators discovered his abandoned vehicle containing personal belongings, including his dog tags—an item he had reportedly warned would signal his death if ever found without him. Despite years of investigation and speculation, no definitive answers have emerged.

Was Burgwinkel involved in something more significant than anyone realized? Was he constructing a secret identity? Or was he struggling with circumstances that remain unknown to this day?

From Cold War espionage to one of the military community’s most intriguing unsolved mysteries, Episode 4 of Secret Squirrel Files explores how secrecy, perception, and human behavior can leave lasting impacts on national security history.

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Phoebe Wells is the Public Relations & Partnerships Marketing Manager at ClearanceJobs and loves every aspect of her role. Creating content and working with the CJ team to connect cleared candidates with employers is incredibly rewarding, as the work ClearanceJobs does ultimately supports the mission of the U.S. As the daughter of a veteran and former cleared worker, she knows the sacrifices security and defense professionals make. She is honored to assist them in leveling up their careers. Plus, she gets to work from home in the Adirondack Mountains with her partner and two huskies!