Okay.
I also wanted some clarification from Dr. Tam. This is something that Dr. Singer might want to comment on as well.
When we're talking about level 2s, Dr. Singer's word is “biosecurity”. When you are talking about this actual bill, Dr. Tam, you're talking more about “biosafety”. I'm wondering if you could give me a little bit on the difference between the two, and the intent of this bill with level 2s.