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In the area of biological effects and medical applications of non-ionizing radiation approximately 25,000 articles have been published over the past 30 years. Despite the feeling of some people that more research needs to be done, scientific knowledge in this area is now more extensive than for most chemicals. Based on a recent in-depth review of the scientific literature, the WHO concluded that current evidence does not confirm the existence of any health consequences from exposure to low level electromagnetic fields. However, some gaps in knowledge about biological effects exist and need further research.

Source: http://www.who.int/peh-emf/about/WhatisEMF/en/index1.html

> People won't be comfortable always thinking they're on camera.

People (at least USAians who work in an office and live or work in something larger than a village) are on camera way, way more than they realize.

Few years ago, people were not comfortable being tagged on a social network but many have moved on.