Apparently one of these things flew within 20ft of an aircraft recently
All you need to do is strap 10Ibs of explosive to one and rig it up to an impact detonator. Surely it's only a matter of time whether it be by accident or design?
http://www.telegraph.co.uk/news/ukn...bombs-for-terror-attack-on-passenger-jet.html
The article above that you refer to does seem to be complete scaremongering.
I'm sure it is, but someone is extrapolating how easy it is to get hold of these things, and how one could be rigged up to perform a more sinister function.
The history of terrorism (and warfare for that matter) has no shortage of things thought to be unlikely or impossible that were subsequently shown to be feasible. I'd have thought it feasible that one these things (or a swarm of them) could be crash landed on the House of Commons Terrace on a hot afternoon (not sure if that would be a bad thing though given my current mood towards are politicians)