The Islamic State's (IS) influence has penetrated Saudi Arabia so successfully via social media that some Saudi youth are being persuaded to kill soldiers and police, even when they are family members.
Salafists — ultraconservative Muslims — believe in the concepts of al-wala wal-bara, which some scholars interpret as loyalty to all that is Islamic and disavowal of everything not considered Islamic. They believe these concepts are a main pillar of monotheism and the basis of Islam and are an expression of the love of God. IS is often said to adhere to "Salafi jihadism."
