"The Creature From Jekyll Island: A Second Look at the Federal Reserve"... written by author G. Edward Griffin. Part of what was contained in that book came from the following 50-minute long video interview with Norman Dodd, Congressional Investigator of Tax-Exempt Foundations. The investigation took place back in the early 1950s. And this interview was given in 1982... almost 30 years ago... and almost 60 years since the investigation was done. Ed Griffin conducted the interview, plus he provides an introduction to the interview itself.
A very dry interview, but interesting.
www.brasschecktv.com/videos/the-secret-government-1/the-secret-history-of-our-downfall.html