http://www.newscientist.com/news/print.jsp?id=ns99996240 or http://www.newscientist.com/news/news.jsp?id=ns99996240&lpos=home3 Stealth wallpaper keeps company secrets safe 10:00 08 August 04 Special Report from New Scientist Print Edition. Subscribe and get 4 free issues. A type of wallpaper that prevents Wi-Fi signals escaping from a building without blocking mobile phone signals has been developed by a British defence contractor. The technology is designed to stop outsiders gaining access to a secure network by using Wi-Fi networks casually set up by workers at the office. <SNIP> ----------------------Kaos-Keraunos-Kybernetos--------------------------- + ^ + :"Our enemies are innovative and resourceful, and so are we. /|\ \|/ :They never stop thinking about new ways to harm our country /\|/\ <--*-->:and our people, and neither do we." -G. W. Bush, 2004.08.05 \/|\/ /|\ : \|/ + v + : War is Peace, freedom is slavery, Bush is President. -------------------------------------------------------------------------