I've heard Barry interviewed on the Tamar Yonah show several times. I don't think he's a holocaust denier or someone that wants to harm Israel or the Jewish people. I even think a lot of his investigative reporting and stories have merit. However, I also think he has a propensity for somewhat incoherent, tangential, disjointed, rambling, unhinged diatribes. A substantial portion of his work should only be taken at face value.
When dealing with Barry it's important to keep in mind that even a broken clock is right twice a day.