The biggest terrorist in the world is a country called the USA. It is because of them that Osamas are created.
Why blame him alone, when he is only a reaction to the real culprit, the USA?
By this time, Saudi and all other Gulf nations have realised how America has been sucking their blood (oil) all these years. It has no friends left in that region, except its stooge, Israel.
After attacking Iraq on false premises for its own selfish ends, USA is next targetting Iran.