White Nationalist Group's Meeting Prompts Protest

He said it was important to combat groups such as New Century Foundation before they reach a wider audience.

"The bottom line is, every time the Nazis get their message out, they receive new people," Adler said.

Adler denied that his group was infringing on the organization's rights to free speech and assembly.

"That's what Hitler said, that some people tried to silence him," Adler said. "The reality is, Hitler started with a handful of followers, and Jews said, 'Let him speak.' The fruits of free speech for Nazis was Auschwitz and 6 million Jews dead. Anti-Semitic words lead to anti-Semitic action."

Both organizations have been labeled by civil rights organizations as extremists. The Southern Poverty Law Center calls the New Century Foundation a "hate group" and Taylor a "white supremacist."

The Jewish Defense Organization, a splinter group of the Jewish Defense League, which was formed by Mordechai Levy and is based in New York, has been called an extremist organization by the Anti-Defamation League. Both radical Jewish groups are part of what the ADL and others call the "Kahane Chai" movement, referring to the late Meir Kahane, an American Israeli rabbi who advocated the expulsion of all Palestinians from Israel.

Kahane was assassinated in 1990.