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A man reacts at the hospital after Chokri Belaid was shot to death in Tunis, Wednesday, Feb.6, 2013. The Tunisian opposition leader critical of the Islamist-led government and violence by radical Muslims was shot to death Wednesday — the first political assassination in post-revolutionary Tunisia. The killing is likely to heighten tensions in the North African nation whose path from dictatorship to democracy so far has been seen as a model for the Arab world. (AP Photo/Amine Landoulsi)

Tunisia protests slaying of secular leader

Thousands of protesters gathered in Sidi Bouzid, cradle of the Arab

Spring uprisings, after a prominent secular opponent of Tunisia's

moderate Islamist-led government was shot dead on Feb. 6. The assassination of Chokri Belaid has plunged Tunisia deeper into political crisis.