Ban them, ban them all...
Have them all put down, deported, in prison etc. etc.
Unless, of course, the (ultimate) owner is a media corporation using them to snoop on the latest vapid 'celeb', in which case the colour of their pants or the fact that they were sunbathing nude on a private beach surrounded by twelve foot high fences and armed security personnel is a real public interest story and justifies the use of intrusive technology.