I've been to his web site and it attacks labels the pro-Israel position "neocon" even though his own poll on Israel vs. Iran returned a 71% pro-Israel response. As I understand it, he used to be pro-Israel. Has he changed into a "palaeo?"
Another concern is that (according to Wikipedia--granted, not the most reliable source) he is against the death penalty and wants a moratorium. NB: I am not defending the death penalty as currently administered, which is contrary to Divine law. If Viguerie is opposed for the same reason, well and good. BUT, if he is opposed to the death penalty in principal then I have a problem with his position.
If memory serves, Viguerie has opposed the death penalty at least since the 1980s out of fear that an innocent might be executed by mistake.