some good succinct answers in the comments:

"How can all these numerous, various radiation-type waves we're beaming everywhere NOT be doing some crinkly shit to all living things in proximity.

@JasonsRobot: Because they are weak compared to the dose of cosmic rays, Earth's natural radioactivity and UV radiation from the sun that most living things get every single day

@Arken: Yeah. But it's not like they're 'instead' of cosmic, natural, and uv stuffs. It's on top of. Plus, the man-made ones are all freaky. Our bodies evolved being bombarded by the natural stuff so that's old hat. How can we know if we can deal with the added onslaught of new stuff.

@JasonsRobot: We can know because we have studied the EM spectrum for a couple of hundred years know and we know a huge amount about it."

Automate logging in to the Fairmont hotel wifi with (go 10-line-long Jetpacks!) #moz10