If you've never read his articles and want to form your opinion, here are the sources:
His NRO archive: http://www.nationalreview.com/hanson/hanson-archive.asp (the fall of 2001 articles are especially telling)
more archives: http://victorhanson.com/articles/index.html
Bush Administration opinion as glanced from another article about VDH; they like him maybe as much as we do: http://www.freerepublic.com/focus/f-news/1085464/posts?page=6#6
Discussion of his articles here: http://www.freerepublic.com/focus/f-news/k-victordavishanson/browse
About Hittite language, you look like right http://en.wikipedia.org/wiki/Hittite_language that its Indo-European language not Semitic. So, nobody is perfect, I guess...
I don't think that Hanson called the language Semitic. Could a people Semitic in ethnic origin speak an Indo-European language?