The article got mentioned wireless devices using the RF frequencies have radiation risks...I not technical expert in telecom, don't know whether modem and wireless router use these frequencies or not...my layman knowledge is they do, best to keep to minimum usage...come to think of it, all these wireless telecom only come out full swing in the last few years, no one know the long term effects of being subjected to so many wireless network at home...
My view is there is no escape from telecom usage but no need to subject own family and neighbours to more radiation by adding on more antenna than is necessary in order to receive Singtel/Starhub/M1 signals. Recall watching some Taiwan news before of people erecting illegal telecom base station at home (lease space to operators for rental income) and residents nearby are understandably very disturbed and disputes arose over this...