Is Cell Tower Radiation harmful?

Telcos say that they are not allowed to expand tower network due to emission issues. Emissions from mobile towers are considered safe as it is non-ionising or “low energy” radiation, which cannot alter the human DNA. At most, it can only induce thermal effects by way of mild arming of the body. Only ionising or `high-energy’ radiation such as X-Rays, Gamma rays or ultra violet emissions can alter human DNA, and hence, can cause harm. Cell tower radiation is less or comparable with the safe emission levels of regular household  electrical appliances like mixer grinders, vacuum cleaners, microwave ovens, hair dryers or shavers.