I think NuLabour purposely imported the dog and made sure it bit people. It will subsequently transpire that there "may" be other dogs, outside quarantine afftected. Mass panic will ensue and eventually it will all blow over.
In the meantime, of course, it will distract the attention away from the collapsing economy, possible fuel shortages, teachers strikes, loss of the 10p tax rate, I'd cards, increasing repossessions, increasing personal bankruptcies/IVAs, immigration chaos, loss of law and order, the ugliness of Gordon Strachan, Hazel Blears and Harriet Harperson, the price of eggs and the failure all aspects of the education system.
And they can then continue to fvck us all over before the next crisis comes along.
Bastards.