Doesn't the Inverse Square Law mean that any radio signal from ET would be way to faint to be detectable? After all, if Alpha Centauri is just a dot in the night sky, what would an Alpha Centauran's radio transmission be like -- and would it be detectable against the radio waves emitted by Alpha Centauri itself?

It's a shame really. I miss the radio shows I used to listen to when I was a kid on Alph... oops!

Mike