The use of the Brewer spectrophotometer is, if anything, continuing to increase in other countries around the world, with others recognizing the advantages that the Brewer instrument can offer. I think we still have an excellent reputation there. Our role in using the Brewer triad, in calibrating everybody else's Brewer instruments, is a very critical one.
On the science side and developing other technologies, we remain interested, but our focus is more on what's the issue—ozone—than on just technologies.
Charles, do you want to add anything?