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What do I need to know about Heartbleed?

What do I need to know about Heartbleed? Creative commons image Credit: The Open University; original logo copyright Heartbleed.com
Updated 11 Apr 2014
There's a lot of advice and confusion about the Heartbleed security flaw - what do you need to know? And what do you need to do?

Terminal Cities

Featuring: VideoVideo AudioAudio
Terminal Cities Copyrighted image Credit: BBC
Introductory level Duration 10 mins Updated 13 Jun 2013
Everyone wants to be able to go everywhere, but no-one wants the Terminal City near them. Simon Bell discusses the paradox of modern air travel.

Evidence, oversight and regulation - not to be messed with?

Evidence, oversight and regulation - not to be messed with? Creative commons image Credit: NASA
Introductory level Updated 05 Mar 2013
What have we learnt from the organisational and managerial failures of the Space Shuttle Challenger disaster?