I wonder how much the youth of Iran, the Mossad, and the CIA is taking part in here? Look at the big picture...
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And Russia, and China...
Youth of Iran, a lot. Mossad and CIA none. There would be no opposition movement if Israel or the US were involved in any way. Just because the opposition is against the Mullahs doesn't mean they are pro US or Israel. If the opposition does manage to gain power, don't expect much difference in their attitudes towards the west. Co-operation with the west is political suicide in Iran and indeed most of the Muslim world.
The best we can hope for is a leadership that doesn't want to nuke us like the current leadership does.