I checked the creation date on the web page and it is Jan 2006. I don't know where they are getting the information from. We don't require that electronic devices be turned on if they are battery powered. Can you imagine what a slow down that be to the line. Some people have many battery operated items in their bags. We cant stop them all and make them show us that they all work. This article is probably hinting at having the components of an IED with you.