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Simon casts an eye over the revolutions and political unrest that has been taking place across the world, and asks whether Western tech companies are inadvertently helping governments suppress their people.

Rupert Goodwins is back, learning how we'll be fighting crime in future.

The government has repeatedly looked to crowdsource us for ideas, but they aren't really using them. Should they bother at all?

And Simon discovers how the RNLI is using technology to save fishermen's lives.

Producer Lucy Lloyd.