Poland has pursued a policy of economic liberalization since 1990 and today stands out as a success story among transition economies.

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More placid than Egypt with its intense, teeming vitality, Tunisia has had a calmer transition, and has often been described as the success story of the Arab Awakenings.

CNN: Why Tunisia's leaders must resist urge for power grab

Success in Egypt in the transition towards democracy is really a critical thing and we've always been very focused on that.

WHITEHOUSE: Press Briefing

And we understand that this is a long war, and the policy of the President devised with his advisors and commanders is aimed at achieving the success that we need and drawing down our forces once those successes have been achieved and as we transition authority to Afghan security forces.

WHITEHOUSE: Press Briefing

Both Couper and Segal say a trip in advance is an essential part of making your transition a success.

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But analysts say continuing frustration over corruption and lack of progress on the economy could pose a danger to the success of Tunisia's transition to democracy.

BBC: Arab uprising: Country by country - Tunisia