Last week British newspapers claimed WiFi had potential health risks, especially for children. But some scientists say these scare stories lack credibility and are based on flawed science.
If the journalists were really concerned about the dangers of radio frequency electromagnetic radiation on the sensitive brains of the young, they should be calling for the closure of TV and radio transmission towers rather than asking us to turn off our wi-fi laptops.
The modulated frequencies that carry Radio 4 and ITV into our homes are just as powerful as the wireless networks, and a lot more pervasive.
And my wireless network is only carrying data when I'm online, while Radio 3 burbles all day long, possibly exciting electrons in my brain and causing headaches.
Then there is the danger from photons of visible light streaming down onto us as we work, since these carry more energy than microwaves and could surely do more damage.
Perhaps we should demand that our children work in the dark.