The Panorama documentary on the alleged risks associated with Wi-Fi can be viewed online: You can watch it via the BBC Web site or using Bad Science's Google Video link. While you're at it, read Bad Science's comment space on this documentary, as well as the article written by its editor last year about electrosensitivity and the comments that follow it. Editor Ben Goldacre states it beautifully in that May 13, 2006, article: "I don’t think people who report being hypersensitive to electrical fields are hypochondriacs: I think they have real and distressing symptoms, but I also think, in the light of the evidence above, that electromagnetic fields probably aren’t causing those symptoms, and they may remain unexplained for the moment."
Lord, is it bad. They show a single person involved in a study (apparently showing a re-enactment of that, as they couldn't possibly be in the room when the study was conducted), stating that she identified the presence of a cell base station (mast, as the British call it) signal 2/3rds of the time, but then note in passing that the results from the rest of the "independent" study's subjects haven't yet been analyzed. The signal was artificially generated, and other aspects of the study are unclear.
If I were not a calm man, I'd start ranting right here. You can't cherry pick a self-identified sufferer from a clinical study and say that because she achieved a certain result that you're confirming her claims. What if 50-percent of the control and suffering group identify 2/3rds of the time a signal was present, and 50-percent were wrong 2/3rds of the time? Bad Science points to 31 studies done on electrosensitivity, and the overwhelming consensus review of those studies that there was no correlation between identification as electrosensitive and the ability to sense a presence or absence of signal.
Please note also that Alasdair Philips of Powerwatch, a lobbying group that promotes the notion of ill health from wireless transmissions, helps measure the signal intensity in a classroom--the measurement that the program notes is 1/600th of the UK's level of concern of signal strength. Nowhere is it mentioned here (or in his other appearances, from what I can tell), that Philips's advocacy site refers sales to EMFields, the "trading arm of A & J Philips."
One might suggest that if you're pushing the notion that industry, with a vested financial interest, might be suppressing the outcome of studies, that it's also worth noting one of the primary people involved apparently has a financial interest himself in serving a community that he is helping to identify. This shouldn't discredit him (nor industry) from commenting on the matter. But it should have been mentioned that he sells the tinfoil that lines people's walls. Powerwatch itself discloses this information in part on one of their sites.