[TexKat]

What might be bringing the current Iranian & Saud regimes together?

Could it possible be their disdain for the Bushes. What GWB has professed on world wide television has got to have ruffled a whole lot of Arab feathers and they way they maybe looking at it is, Arab blood is thicker than water.

[Thud]

Arabs and Persians are completely different ethnic groups who dislike each other intensely. Not to mention the still more virulent religous differences - Arabs are generally Sunni Moslems, and Persians are Shi'ia Moslems.

The Saudis specialize in oppressing the @ 300,000 strong Shi'ite Arab minority which happens to compose almost all of the residents of Saudi oilfields near the Persian Gulf. The Iranian mullahs objected to that, at least until now.

[JasonC]

The Iranians aren't Arabs. They are Persians. They speak a different language - Arabic is a language and Arab designates the nation of those who speak it. The Iranians are no more Arab than the Germans are French. They also have a different religion - they are Shiites while the Saudis are fundamentalist Sunnis. A much more plausible cause is similarity of interest based on both of them having unstable governments worried about being overthrown, who both use Islamic stridency and hatred of Israel to appeal to their people.