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PPI is one among tens of thousands of not-for-profit paranormal investigative groups worldwide proud to support and ally with a broader network of dedicated sister groups. However, as a trademarked identity, we are unaffiliated with any other investigative or research entity whose moniker or initials may resemble ours.
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PPI Podcast #4: Critical Thinking (2009)
Recorded March 21, 2009 at Grossmont College, El Cajon, California