What is jihadi Salafism?

 What is jihadi Salafism? Discuss the evolution of al Qaeda. Do you think the U.S. should have been more cognizant of the beginnings of al Qaeda? Why or why not?  What makes ISIS unique? What aspects of ISIS are informed by scholarly Salafism?
How important the killing of Osama bin Laden was on the war on terror?  What is your opinion on the political issues surrounding terrorism in Pakistan? Do you believe the U.S. should be involved? Why or why not?