Beyond the Kremlin's Reach: Tatarstan is stable, but the republics of the north Caucasus are aflame. Why?

In contrast, the transfer of power in Dagestan, a Muslim republic in the north Caucasus, has been accompanied by murder, explosions and civil strife. The region has seen a surge in home-grown Islamic fundamentalism, increasing lawlessness among the police and security services and feuding between local clans.
Mr Medvedev is expected to appoint a new president for Dagestan in February, but this is unlikely to turn the republic into a peace-loving and lawful place. One explanation for the differences between Tatarstan and Dagestan lies in their contrasting histories.

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