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Delve Special Episodes

  1. Wednesday 22:30
    BBC Radio 4 Extra

    A Rocket for DefenceSeries 3

    1/4 Reporter David Lander investigates whether we really need the new 'Sea Snake' torpedo.

  2. Wed 17 Jun 2026 22:30
    BBC Radio 4 Extra

    CowboysSeries 3

    2/4 Reporter David Lander investigates Britain's cowboy builders.

  3. Wed 24 Jun 2026 22:30
    BBC Radio 4 Extra

    Food for ThoughtSeries 3

    3/4 Reporter David Lander investigates the worrying impact of a new food additive.