Health concerns? What a load of shit. There have been numerous studies done and there's nothing to fear from RF. And if there were, if it's as hard to hammer down as it has been it's certainly not worth worrying about. People die running cable for wired internet.
Oh, and if we're really going to be afraid of this stuff, jumping all over this digital Clear stuff and cell phone towers is just silly. There are magnitudes more power shooting out of AM radio antennas.