Thank you to all the witnesses for some really excellent testimony.
Dr. McEwen, I want to put this question to you. I want to step far back to try to get an understanding of the scope and urgency of this issue. I think we all started off as lay people wondering, as a health committee, how serious a problem this is. We understand well the importance of antibiotics, and we're worried that overuse of antibiotics in both the animal and the human world may be getting us to a point where we are really running the risk of having antibiotic-resistant bacteria, so we're running the risk of having serious pathogens for which we have no effective antibiotic.
Can you help us understand how close we are to that situation? How urgent is the need to deal with this?