Mobile phones and computers with wireless internet connections pose a risk to human health and should be banned from schools, a powerful European body has ruled. A Council of Europe committee examined evidence that the technologies have potentially harmful" effects on humans, and concluded that immediate action was required to protect children. In a report, the committee said it was crucial to avoid repeating the mistakes made when public health officials were slow to recognise the dangers of asbestos, tobacco smoking and lead in petrol. The report also highlighted the potential health risks of cordless telephones and baby monitors, which rely on similar technology and are widely used. Fears have been raised that electromagnetic radiation emitted by wireless devices can cause cancers and affect the developing brain.