Not only will they have to deal with unprecedented levels of security, but also deal with the fact soccer is HUGELY popular in the Middle East. Attacking a World Cup venue will not win friends among Arabs among the Persian Gulf, that's to be sure.
Sports, music, movies, western clothing and even just progress in general, are sins to the 7th century beasts that are in al Qaeda and the racist Arab/Muslim supremacist movement. They hate most anything that's Christian or Western.
Arabs won’t give a rip as long as any muslim teams aren’t attacked. Women aren’t even allowed to attend matches in Saudi Arabia or Iran. There is plenty of areas of Saudi Arabia were its been banned because they claim its got “westernized” rules.