Everybody that can observe and draw logical conclusion must conclude that a worldwide Islamic coup is going on, and that this conspiracy uses terror in order to passivate the general bublic psychologically.
Also it is obvious for everybody that can observe that utterly brainwashed religious people, willing to perfom suicide attacks for the religion, are a reality.
The composed past is used more or less as in English in European Spanish, which means that it not only tells about an action in the past, but also signals a state or situation of importance caused by the action.
In Latin American Spanish the composed past is little used.
The average salery of ordinary workers are substantially less.