Canadian Initiative... on the 23d of November 2011:
Parents across the globe who are concerned about their children's health and safety while they are at school are strongly encouraged to participate in Wifi-Free Wednesday, which will send a clear message to school boards/governments everywhere that wifi radiation has no place children's classrooms. Parents who oppose wireless, fully support the use of computer technology in the classroom with hard-wired connections. ...
You can read more here:
http://www.hese-project.org/uk_forum/index.php?id=287