the main reason why such separatists, do such thing is to make a political statement. pardon the term, but Western Countries regarded them as "savages". add to that their false belief of "jihad" or the holy war, which is lietrally interpreted. such ambitious men, like Bin Laden, Saddam Hussein, etc. they would want to rule the entire earth, not knowing that wielding a power through terrorism would not make any difference. have they got "balls"? no, i believe they haven't got any. because brave men do not hurt the helpless. but their ideology, corrupts them any sense of well-being of such a civilized man.