After a six month gap I restart this thread as the court case against the 8 x accused has just started
http://news.bbc.co.uk/1/hi/uk/7328892.stm
There's been lots of discussion so far on this thread about the ifs and buts of how they might have assembled the device. The BBC article above sheds some light on this.
Its quite strange to see the faces of those who are accused (innocent until proven guilty) as they are potentially those responsible for all our misery at airports re liquids over the last 2 years and presumably for ever more.