Don't allow? That is totally unworkable. Besides the roads that loop around almost all our airports, there are parking garages which have line of sight to antennas, and public roads off airport property which could be used as bases to jam the receivers onboard.

Sorry, but a reactionary 'just ban everything' approach to security is neither workable, nor prudent.

Risk management is key....anyway, why get so bent over this scenario while cargo remains unscreened and through-the-fence employees are not screened, nor are their facilities really sterile.

We have bigger fish to fry than chase pie in the sky scenarios.