Radiation? First off, every device that uses radio waves emits radiation, as do light bulbs, the sun and more. The main radiation would be the typical WiFi stuff. If it put out significant radiation anywhere else in the radio spectrum, it wouldn't be permitted by Industry Canada.
Radiation is a natural part of our environment and without it, we wouldn't exist. Now, microwave radiation, at the levels of a microwave oven, is harmful, but the same frequencies as used in WiFi are not.
Now, what was your question again?
I haven't lost my mind. It's around here...somewhere...