Should you be worried?
Our science on this is such that we don't even know if low level radiation accelerates the ageing process.
Radiation in all forms is pollution and we need stricter pollution, or zero tolerance for pollution which is much more dangerous that speeding while driving though less obvious in its implications.
http://m.youtube.com/?reload=3&rdm=mfca6b1wx#/watch?v=8Hi4NmQEsdg&feature=related
Support:
Communities Against Serious Injury From Wireless Technology
Read about the hidden dangers of WIFI for babies and children.
Scratches to Sketches