If you don't already look at it, do read Tom Gross' Middle East Despatch. It's a treasure trove of information and expose of bias and nutcases.
In which vein, this week he reports on Roseanne Barr:
Emmy and Golden Globe award-winning Hollywood actress Roseanne Barr is one of a small but vociferous band of academics, journalists and celebrities who are using their Jewish origin as an excuse to spread vicious anti-Israel (and often anti-Semitic) slurs.
In Roseanne Barr’s latest posting on her popular blog, she states that the rockets being fired from Gaza into Israel are actually being fired by Israeli forces, not by Hamas and Islamic Jihad. Such a conspiracy is almost on a par with the anti-Semitic slur that Israel was behind the 9/11 attacks.
Barr has previously written of “concentration camps in Gaza”.