London 2012: Legal challenge to Olympic missile sites
9 July 2012 Last updated at 16:58 BST
Council tenants have begun a High Court bid to block proposals to place surface-to-air missiles on the roof of their tower block during the Olympics.
Residents of Fred Wigg Tower in Leytonstone, east London, are applying for permission for a judicial review.
The tenants say they were not consulted fairly and properly over the plans.
The BBC's Katharine Carpenter reports.