Why does Iran want to assign the "Arab spring"?

 After successive failure of regimes in Tunisia, Egypt and Libya, officials and religious leaders of Iran (IRI) are trying to present the "Arab spring" as continuation of the concept of "exporting the Islamic revolution", declared by Khomeini. In other words, they state that the “Arab Spring” is directed against Western interests in the region; and to prove this situation, Tehran refers to the fact, that the authoritarian regimes overthrown of Tu...