Heathrow launches investigation after confidential security plans found in street

USB stick containing 2.5GB of data, reportedly including locations of CCTV cameras, tunnels and access to restricted areas, was found in west LondonAn investigation has been launched at Heathrow airport after a memory stick reportedly containing confidential security information was found in the street.The Sunday Mirror says the USB stick – which was not encrypted and contained 2.5GB of data – was discovered by a member of the public in Ilbert Street in Queen’s Park, west Londo