Osama was actually a student of Sayyid Qutb, a man who was reviving the teachings of fringe 18th century scholar Mohammed Al Wahab. It's Wahab's teachings about how women should wear burqas and be treated differently from men and Qutb's teachings that the middle east should cut itself off from the west that influence modern Muslim extremism, not merely Osama himself.
And just to cut off the the comments from the historically ignorant and socially inept anti religious bigots on the board, suicide bombing was developed by atheist Tamil Tigers and secular Lebanese Leftists in the 1980's: http://www.literaryreview.co.uk/gray_12_10.html
Burqas are outlawed in more Muslim countries than Muslim countries that require them: http://en.wikipedia.org/wiki/Hijab_by_country#Muslim_world
Four of the top five countries with Muslim majorities have female heads of state: http://en.wikipedia.org/wiki/Female_political_leaders_in_Islam_and_in_Muslim-majority_countries
And over 60% of Muslims are actually in Asia, not the middle east: http://pewforum.org/uploadedfiles/Topics/Demographics/Muslimpopulation.pdf
Just in case I haven't offended everyone yet, the Packers suck, Macs are over priced and atheists are just as capable of being wildly irrational as religious folks are of being rational.
There, now minus this post at will.
instead your research, sanity and reason get you four plusses...