Now, just a thought but if you had a UAV fly the length of the runway with jamming transmissions aimed in front of it. It would make the runway safe against single drone incidents. But a detected drone would still be a disruption because it would have to be removed.

The drone incident was an incident waiting to happen. We have had drones fall out of the sky onto babies in prams already. And FWIW there are laws already in place regarding photography pointing at a building that is not yours.

As for the miscreants - it needs a custodial sentence of some import to warn other idiots. It won't stop the determined though. Shops that sell don't offer advice on insurance, and insurance companies don't understand either, it needs an incident to raise the profile of the problems. Politicians are too busy playing politics, right now. And a few of them need custodial sentences.