More challengingly for the production team , some significant but unforeseen events require scenes to be rewritten and rerecorded at short notice , such as the death of Princess Margaret ( particularly poignant because she had appeared as herself on the programme ) , the World Trade Center attacks , and the 7 July 2005 London bombings . The events and implications of the 2001 foot-and-mouth crisis required many " topical inserts " and the rewriting of several storylines
7 July 2005 London bombings
7 July 2005 London bombings
The Archers