No, I'm saying ozonesondes are critical. I think I've been very clear that both methods will continue to be used. One of the things that has changed since May is that we've had different scientists, including at conference proceedings just last week, I believe, talking about a new way of looking at some of the greenhouse gases using satellite data. Again, our measurement techniques are constantly evolving. So this is a positive thing, as satellites can cover much more area--
On December 13th, 2011. See this statement in context.