This weeks top selections as we move into the quietest broadcasting month of the year concern Britain's flood defences and the lives and ideas of four pioneering mathematicians.
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Also this week life continues for the residents of the Pepys estate and Muslim extremism falls under the spotlight once more.
Mon 6 August - 8 - 9pm - Channel 4 - Dispatches: Britain Under Attack
This edition looks at support in the UK for Muslim extremism and militancy from a variety of sources.
Mon 6 Aug - 8.30 - 9pm - BBC1 - Panorama - The Cost of Keeping Britain Dry
This week Britain's flood defences are examined and the film-makers ask if enough is being done to prevent further tragedy and loss of life from severe flooding.
Mon 6 Aug - 10.35 - 11.25pm - BBC1 - The Tower - 7/8
In this penultimate episode of the documentary that took three years to film the first wealthy residents move onto the Pepys estate.
Pick of the Week :rb:
Wed 8 August - 10.05 - 11.35pm - BBC4 - Dangerous Knowledge
In this documentary homage is paid to four innovative mathematical thinkers whose ideas were of great significance and influence and, sadly, whose lives ended in tragedy - namely Georg Cantor, Ludwig Boltzmann, Kurt Godel and Alan Turing. These men were in a very real sense libertarian scientists as they attempted to challenge prevailing orthodoxies and certainties about the nature of the world we live in.
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