Adding to the paranoia maybe?
The news here in the States has done a lot of coverage of the plod and the government's stance on drones, airport, and border security in Blighty. Could this all be security theater (or theatre if you prefer) so that Parliament and the plod are "doing something to keep everyone safe"? Or maybe even the company that's selling the systems now for detecting these things?
This whole affair smells like 3 day old fish that's been left out in the sun. I'm waiting for sightings here in the States to "increase security" but somehow, I don't think drones over the southern border will do that but in the race to the bottom that we've been seeing the last few years, It wouldn't surprise me.