Martin Empson

The Great Firewall of China

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The Guardian has been running a series investigating the extent to which our lives are recorded and analysed (see www.guardian.co.uk/bigbrother/privacy).

Of particular interest is the capabilities of governments and companies to view and read e-mails, and to log websites visited. Several e-mails have asked about the hushmail e-mail account I use for this column. Well, www.hushmail.com offers a free e-mail service with the ability to encrypt and protect your e-mails so that they can't be read.

A Tale of Two Logos

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With the Johannesburg summit on sustainable development happening at the beginning of September, there are a number of websites giving alternative views to an event which will see large amounts of hot air coming from politicians as they clamour to show their green credentials.

There are many sites dedicated to exposing the real issues behind the summit and climate change in general. Greenpeace have been having fun with their Stop Esso campaign. The website was originally hosted in France. Esso mannaged to get an injunction to stop Greenpeace using their spoof E$$O logo on the Stop Esso website www.stopesso.org. But things are not always that simple in cyberspace--Greenpeace moved the website to a host based in the oil rich state of Texas--where the injunction isn't valid.

Days to Remember

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Review of 'Crisis', exhibition by Jess Hurd and Alke Schmidt, Vaults @ The Foundry, Shoreditch, London and of 'You are G8, We are 6 Billion' by Jonathan Neale, Vision £10

'Crisis' is an exhibition on the political upheavals of globalisation and the struggle against war, violence and injustice. Centred around key events such as the protests at the G8 summit in Genoa last year, the recent war in Afghanistan and the Middle East, and the rise of the anti-war movement, the exhibition features the images of Alke Schmidt and the photographs of Jess Hurd.

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