Does the U.S. tolerate anti-Muslim speech?

From Think Progress: In October, right-wing radio host Michael Savage went on an anti-Muslim tirade on his show: I’m not gonna put my wife in a hijab. And I’m not gonna put my daughter in a burqa. And I’m not gettin on my all-fours and braying to Mecca. And you could drop dead if you don’t like it. You can shove it up your pipe. I don’t wanna hear anymore about Islam. I don’t wanna hear one more word about Islam. Take your religion and shove it up your behind. I’m sick of you. Since that time, a “handful” of companies have pulled their advertising from Savage’s show. But he’s still on air. According to a piece in the Christian Science Monitor today, “That leaves many Muslims-Americans — and non-Muslims like Mr. Gronseth — suspicious that Americans have a double standard when it comes to Islam.”

UPDATE: Yesterday, Savage sued the Islamic civil rights organization CAIR for “copyright infringement over the organization’s use of a 4-minute segment of his show in which he called the Quran a ‘book of hate.’“