Washington (CNN) - Fox News chief Roger Ailes apologized to a Jewish group Thursday after he called National Public Radio (NPR) executives "Nazis" in an interview with "The Daily Beast."
In a letter addressed to Anti-Defamation League Director Abraham Foxman, Ailes said he should "not have used that word" to describe the executives.
Full letter (pdf)
"I was of course ad-libbing and should not have chosen that word, but I was angry at the time because of NPR's willingness to censor Juan Williams for not being liberal enough," Ailes wrote.
Williams, who serves as a Fox News analyst, was fired from NPR in October after he said he becomes "worried" and "nervous" when he sees someone in "Muslim garb" on an airplane.
In Wednesday's interview with Howard Kurtz, who also anchors CNN's "Reliable Sources," Ailes had some choice words for NPR.
"They are, of course, Nazis. They have a kind of Nazi attitude," Ailes said. "They are the left wing of Nazism. These guys don't want any other point of view. They don't even feel guilty using tax dollars to sprout their propaganda."
But in the letter Thursday, Ailes defended his views toward Israel and the Jewish people.
"Many IDF (Israeli Defense Forces) warriors know me as someone who is consistently strong in the defense of the Jewish people and the state of Israel," Ailes wrote. "Even if I'm occasionally politically incorrect I never leave any doubts about my loyalty."
–CNN Ticker Producer Alexander Mooney contributed to this report