The sweep of revolutions across the Middle East has optimists cheering and realists preparing for the worst. And the worst is generally a good thing to prepare for in the region.
The regimes targeted by the movement have invariably either been allied to or achieved a stalemate with Western countries, (a statement that applies to Libya despite how loosely it may be interpreted) and did not seek to build an Islamic republic and impose it across the region. This was not about the overthrow of tyranny. Turkey with its tens of thousands of political prisoners got a free pass, so did Syria and the Iranian revolution was once again left to go it alone. The countries targeted invariably were either opposed to Iran, or not aligned with it. Jordan, which might have otherwise been ripe for a protest movement, saw little action, perhaps due to its king's recent visit to Iran.