One morning a few weeks ago, John Kiriakou got a call from his 16-year-old niece. “Uncle John, you’re exploding on TikTok,” he recalls her telling him. Kiriakou, a 61-year-old ex-CIA officer who went to prison in 2013 for disclosing classified information related to the agency’s Middle East torture program, had no idea what she was talking about. He doesn’t have a TikTok account. He’s more of a Facebook lurker, if anything. But clips from a podcast Kiriakou filmed in January with Steven Bartlett, who hosts the Diary of a CEO show, which has more than 15 million subscribers on YouTube, were going viral without his intervention. For nearly two decades, Kiriakou has been on a campaign to receive a presidential pardon. From 1990 to 2004, Kiriakou served as a CIA analyst and counterterrorism officer, leading a 2002 operation to capture Abu Zubaydah, who ran a training camp for al Qaeda fighters. During his detention, the CIA waterboarded Zubaydah.…