London 2012: Residents march over 'mad' missile plan
30 June 2012 Last updated at 16:45 BST
East London residents opposed to plans to site surface-to-air missiles on roofs for security during the Olympics are marching through Bow.
Six sites have been picked for surface-to-air missiles, some in residential spots, including Bow and Leytonstone.
Campaigner Chris Nineham said it was ''a mad plan'' which would make residents feel less secure, not more.
Ben Geoghegan reports.