Chemical terror plot foiled in London Fri November 21, 2003 11:43 PM ET LONDON (Reuters) - An attempt by a London-based terror group to buy half a tonne of toxic chemicals was foiled after the supplier became suspicious and alerted police, the Financial Times has reported.It said the group had attempted to buy 500 kgs (1,102 lb) of the toxin saponin from Amersham Biosciences late last year but the sale was refused after staff became concerned about the size of the order. A spokesman for London's Metropolitan Police told Reuters on Saturday that police were "not prepared to discuss the...