The design delusion

Yesterday's Guardian article on the increasing use of "Intelligent Design" materials within the science curriculum of British schools causes a torrent of letters today. Most of which prove that advocates of this so-called "scientific theory" understand neither science nor the scientific method. A few samples:

The undeniable fact that Darwin's theory has never been proved is not generally addressed because the theory has been given the status of holy writ. - Alick Bartholomew - Bath

To put Darwinism beyond the reach of criticism is, it seems to me, the worst type of fundamentalism - John Ratcliffe - Ripon, North Yorkshire

Where is the evidence that teaching intelligent design or even creationism in schools, alongside Darwinian theory, does any damage at all? Arguing from evidence is surely important in any scientific discussion; why abandon it here? - John Hallett - Nottingham