Naim focuses on the various religious and ethnic groups across the world closing in on each other, particularly in the Arab world.

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There are reports that groups of heavily armed rebel soldiers in Chad are closing in on the nation's capital N'Djamena.

NPR: Chad's Capital Tense with Reports of Nearing Rebels

To bypass the tour groups, visit the churches and underground cities early in the morning, at midday or near closing.

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