Complex sentence: The letter condemned Herut as well "akin to Nazi and Fascist parties" as a "Terrorist party" and was signed by over two dozen prominent Jewish intellectuals including Albert Einstein, Hannah Arendt, Zellig Harris and Sidney Hook.
Split into simpler sentences: The letter condemned Herut as "akin to Nazi and Fascist parties" and as a "Terrorist party". It was signed by over twenty prominent Jewish intellectuals, including Albert Einstein, Hannah Arendt, Zellig Harris and Sidney Hook.