Russia's 'Big Brother' facial recognition system goes on trial

Activists take legal action against surveillance system, fearing it will be used to target critics of President Vladimir Putin.

    Activists in Russia, who are concerned at government plans for one of the world's largest facial recognition systems, are taking legal action.

    They fear the surveillance system is being used to target critics of President Vladimir Putin.

    Police say law-abiding Russians have nothing to fear.

    Al Jazeera's Step Vaessen has been given exclusive access to police headquarters in Moscow.


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