From the online version of the Echo.
It's a sign of the times, that folk got themselves into a lather and thought some simple actions were a threat.
In comparison with larger nearby airports, John Lennon airport is less busy. Hence flight training know as 'Circuits and bumps'. A number of pilots doing training in take-offs and landings. Hence the colloquial term for them flying round in 'circles' and then landing (bumps), only to take off again immediately.
Add on to the repeated 'circling' an appearance by a Hawk jet trainer aircraft and some of the local populace took to social media in distress.