I can say they do occur. There are a number of areas where they are particularly useful. Say, for example, right now we have an agreement with EASA, which is the European safety authority, and under that agreement there will be sharing of inspection data. All of the inspections that will go on under that category of inspections will be unannounced. That's the way that system works. There are others going on.
If I may give you an example, if a strike activity or some financial problem occurs in a company, we would go in and do that kind of inspection unannounced to check and see what's going on with the company and if there are safety factors.