Guppy makes a very good point. Terrorism should be taken very seriously indeed.
Considering though that there haven't been any specific proposals yet from the Government on how to make private aviation more secure wouldn't a more constructive discussion to be having be what can be done to make GA more secure?...Or whether we should bother at all?
Also; without making any judgement either way I wonder how many people on here would change their views if there was a terrorist attack using a private plane tomorrow?