I have to say I knew nothing about this but assuming it's true (clearly is, there were TONS of links) I think it's horrifying! I'm glad I know now because this would certainly have ended in me being banned from flying if I'd been planning so (well I would have refused!) so I thought others might appreciate the heads up.
"Travellers should avoid using Heathrow until the airport abandons its plans for the mass fingerprinting of passengers. That is the advice from the NO2ID Expats’ group. "Other hubs, whether in the UK or in other EU countries, should be preferred for the time being," the group says in a press release. Heathrow wants to fingerprint and photograph both domestic passengers and international travellers with onward connections to other British or Irish airports. But on 26 March, following a warning from the Information Commissioner’s Office that the measure may be illegal, the fingerprinting was suspended.
The photographing or "biometric capture" of passengers is going ahead. Those who refuse will be denied access to their flights.
+ Heathrow Terminal 5 fingerprint plans 'illegal' - The Telegraph
27/3/08 +
Plans to fingerprint millions of passengers a year at Heathrow's new fifth terminal have been put on hold hours before it opens for business tomorrow. BAA, the airport operator, took the decision after being warned by the Government's Information Commissioner that the move could
breach the Data Protection Act.
http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2008/03/26/nheathrow226.xml
To be fair, they;ve been taking photocopies of your passports everytime you come into this country for about 2 years now at least. I'd be more worried if the Governments track record on any IT related project (i.e. data storage and retrieval) was anything other than diaboloically rubbish.