Marcel Theroux has been in Pakistan, a country with some of the strictest blasphemy laws in the world - for the most serious cases the sentence is life on death row.

Unreported World

Pakistan: Banged up for Blasphemy

What's it like making a film in some of the toughest and most interesting parts of the world? Krishnan Guru-Murthy takes you behind the scenes of the award-winning Channel 4 documentary series Unreported World, and talks to the reporters about the memories they made and the challenges they faced to bring us the world's untold stories.

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Unreported World