The BBC's Panorama team, which recently featured in a screaming match with scientologists on Youtube, has undertaken research which indicates that Wi-Fi technologies may be emitting harmfully high levels of radiation.
Although the radiation emitted by Wi-Fi networks is said to be similar to that from mobile phone masts, there have been no studies into the impact of such technology on our health, a report on the BBC website says.
Wi-Fi technology is currently being used in seven out of 10 British secondary schools and in half of all primary schools.
The findings are particularly significant because children's skulls, which are still developing, are thinner than adults' skulls, and tests have revealed they absorb more radiation than adults, it said.
Although the readings were well below the government's safety limits - as much as 600 times below - some scientists told the programme they believe current safety limits should be revised.
Both the government and World Health Organisation say that Wi-Fi does not fry bains.
The Panorama investigation, Wi-Fi: a warning signal, was screened tonight at 8:30pm (1930 GMT) on BBC1. ยต