In the middle of the hot Arab desert, a sophisticated United States military jet roars to life, races down the sleek runway that slices through the sand like an intricate pattern of crop circles, soars straight up into the sky, and begins its mission to some location perhaps 1500 miles away.
Officially, no such location exists. Â That's because the Arabs want to maintain relations with other Muslim countries while secretly sanctioning possible attacks from the United States on those very countries.
Even more of note is the fact that when Saudi Prince Alwaleed offered Mayor Rudy Guiliani a check for $10 million dollars to aid in the relief to  the families of the 9/11 victims, Guiliani thanked him but said, "No, thanks."
Guiliani reportedly was angered by recent statements by the Prince that the United States needed to evaluate just how much it was responsible for the attacks on U.S. soil and that it needed to reassess its whole Mid-Eastern policy, particularly toward Palestine.
He is according to Forbes,  a self-made billionaire, owning 3.5% of Citigroup, among his articles of note in his vast financial holdings.  Saudi Arabia, according to a 2008 report by the United States State Department, is also the largest exporter of oil to the United States.  In addition to its own population, the country is also home to some 2.5 million foreigners, many of whom are from the United States and nearly all of whom work in the oil industry.
Saudi Arabia is known to be the home of Islam as well as the location of Mecca, the holy city of Islam and the birthplace of Muhammed, who founded the Islamic religion and died in 632 A.D.
The Prince, his family, and the citizens of that region follow the idealogy of Wahhabi, the strict religious interpretation of Islamic religious law. Â Osama Bin Laden, born in Saudi Arabia, and his followers are all adherents to Wahhabi Islam.
Muhammad ibn Abd al-Wahhab (d. 1792) was the first modern Islamic fundamentalist and extremist. Wahhab made the central point of his reform movement the principle that absolutely every idea added to Islam after the third century of the Mulsim era (about 950 CE) was false and should be eliminated. Muslims, in order to be true Muslims, must adhere solely and strictly to the original beliefs set forth by Muhammad.
The reason for this extremist stance, and the focus of Wahhab's reform efforts, was a number of popular practices which he believed represented a regression to pre-Islamic polytheism. These included praying to saints, making pilgrimages to tombs and special mosques, venerating trees, caves, and stones, and using votive and sacrificial offerings.
These are all practices commonly and traditionally associated with religions, but they were unacceptable to Wahhab. Contemporary secular behaviors are even more anathema to Wahhab's successors. It is against modernity, secularism, and the Enlightenment which current Wahhabists do battle — and it is this anti-secularism, anti-modernism which helps drive their extremism, even to the point of violence.
Wahhabi Doctrines
In contrast to popular superstitions, Wahhab emphasized the unity of God (tawhid). This focus on absolute monotheism lead to him and his followers being referred to asmuwahiddun, or “unitarians.†Everything else he denounced as heretical innovation, or bida. Wahhab was further dismayed at the widespread laxity in adhering to traditional Islamic laws: questionable practices like the ones mentioned in the previous post were allowed to continue, whereas the religious devotions which Islam did require were being ignored
This created indifference to the plight of widows and orphans, adultery, lack of attention to obligatory prayers, and failure to allocate shares of inheritance fairly to women. Wahhab characterized all this as being typical of jahiliyya, an important term in Islam which refers to the barbarism and state of ignorance which existed prior to the coming of Islam. Wahhab thus identified himself with the Prophet Muhammad and at the same time connected his society with what Muhammad worked to overthrow.
Because so many Muslims lived (so he claimed) injahiliyya, al-Wahhab accused them of not being true Muslims after all. Only those who followed the strict teachings of al-Wahhab were truly Muslims because only they still followed the path laid out by Allah. Accusing someone of not being a true Muslim is significant because it is forbidden for one Muslim to kill another; but if someone is not a true Muslim then killing them (in war or in an act of terrorism) becomes licit.
It would be hard to underestimate the importance of this principle to modern terrorists.