Glenn Beck opened tonight's show accusing the left of working with terrorists. He never got around to proving that thesis, but he and his guests turned to a closely related topic, fearmongering about the United States increasingly coming under the influence of Sharia law (all this occurring, of course, with a progressive in the White House).

They claimed that shariah "is the biggest threat to our constitutional rights over the next 25 years" and that polygamy will destroy the institution of marriage in the U.S.

Unsurprisingly, both turned out to be Republican activists. Daniel Pipes was President George W. Bush's nominee to the U.S. Institute for Peace. Pipes was also reportedly an adviser to former New York City Mayor Rudy Giuliani's presidential campaign. Pipes has even pushed the false theory that President Obama is a Muslim. He has also discussed NASA's supposed “surreptitious” outreach to the Muslim world.

Furthermore, Pipes has complained about the fact that Muslims have been winning beauty pageants, writing: “They are all attractive, but this surprising frequency of Muslims winning beauty pageants makes me suspect an odd form of affirmative action.”

Beck's second guest, Christopher Holton of the Center for Security Policy, seems to have his own links with the Republican Party, having spoken at campaign events for the party. Holton has previously argued that NPR is “successfully influenced by the Muslim Brotherhood” in response to NPR's decision to sever its ties to Juan Williams.

Yet for all this, possibly Beck was the most radical of all. At one point, Pipes refused to accept Beck's theory that the 12th imam was the Antichrist. Perhaps Beck's next round of guests will help him get the job done.