Throwing Down the Gauntlet

> An excellent article overall, but I did have a question about one
> remark:
>
> "There were early concerns expressed about the idea of microwave beams
> pointing at Earth and wandering astray and associated environmental harm
> from microwaves, although so long as the antennae was collecting the
> microwave beam practically none would actually reach the ground. There
> would be some dead insects and birds to periodically clean up, however."
>
> What do you base this on?

When I did the illos for 'The High Frontier' one of the drawings made
a point of showing the ground under the rectenna was safe for grazing,
etc. I assumed this implied the airspace above the array was less safe.

> Mark Prado has some on-line info on this topic here:
> http://permanent.com/p-sps-bm.htm

I am now reassured enough to remove the reference to dead birds from
the article. Thanks!

Don