Interesting article - and there is a photo of the protest
http://www.computerweekly.com/Articl...ing-trials.htm
edit:
That's interesting as in it has some good and some not-so good aspects. I quite like this bit:
"Protesters said BT had conducted at least two secret trials, in 2006 and 2007, that involved up to 350,000 customers, a figure BT did not deny at the AGM"