How often can you cry 'Wolf'

Well, nothing happened. And I suppose that we should just be jolly grateful. Here was what The Guardian reported on 11 December:

An attempted terrorist attack in Britain in the run-up to Christmas is "highly likely", the home secretary, John Reid, warned yesterday.
"The threat in this country is very high indeed. It is at the second highest level and people now know that publicly, because we publish it on the web. And that means that it is highly likely that there'll be a terrorist attempt," Mr Reid told GMTV's Sunday programme.
"We know that the number of conspiracies of a major type are in the tens - 30 or round about that," he said, although he did not give the details of any plots.

And we'll all believe him the next time he issues such dire warnings?