Gary Cass of the Christian Anti-Defamation Commission has traditionally dedicated most of his energies toward attacking the standard Religious Right tagets: gays, hate crimes legislation, society, and President Obama.

But now Cass has taken up a new issue: Glenn Beck and his Mormon faith.

As we noted last week, there are some Religious Right activists who are growing alarmed that Beck seems to be passing himself off as a Christian in an effort to promote distinctly Mormon doctrines … and now Cass has joined in with them, releasing a video claiming Beck’s work is a “theological train wreck” and an accompanying report accusing him of peddling “heresies and errors”: