Thank you, Mr. Chair.
When we started this process, I didn't know what an isotope was. Throughout this, we've learned a lot, and I hope Canadians have been watching and learning a lot about this process.
It started off with the fact that we were surprised that the NRU reactor did not meet its licence conditions. Then we were shocked when Ms. Keen was fired for doing her job. Now we've started even learning that isotopes could have been provided by other suppliers and that really there are other diagnostic processes or instruments that could have been used.
So there are still a lot of questions pending, and I want to thank all the witnesses for coming here today.
I have less than seven minutes now, so I'm going to try to ask as many questions as I can of all of you.
Dr. O'Brien, in your opening remarks you said you learned about this potential crisis on November 27.