The Islamic republic is unlikely to change its foreign policy or nuclear program, no matter who comes out on top. But the crisis could change Arab relations with the US and Iraq.
Hopes dimmed for a thaw in US-Iran relations as the Iranian president criticized his American counterpart Barack Obama for echoing Bush rhetoric.
But lawmakers are in no rush to tackle a controversial issue that has broad economic and social implications.
Politics, economics, demographics all come into play.
Residents suspect the involvement of widely resented security forces. But protests may not derail the relative peace of recent years.