I know Pellegrino. He’s not a liberal. I’ve also been reading his Hiroshima book, and so far it’s not an anti-American screed. He’s admitted that he got taken by one of his sources, and that part of the book is weak. I don’t know what’s going on here, but he’s not a bad guy, IMHO.
I don't know him, but I do know some of his work - namely, "The Jesus Family Tomb", which was ridiculous. Hardly a piece of serious scholarship and more closely resembling a Dan Brown novel. He clearly had a point of view in that book, and it wasn't conservative.
Moreover, Pellegrino served as an adviser to Avatar. I would be curious about the subject matter he advised Cameron on. Was it the part that said Marines are blood thirsty killers, or that all corporations are bad? Again, another project that hardly involves anything remotely conservative in nature.
I haven't read the book - yet - but if James Cameron was eager to turn it into a movie of some kind, I can only anticipate it would be some kind of leftist's drivel, as that's the only kind of movie Cameron seems to make today.