We heard that a day in the life of an isotope is pretty short, two or three days, so it's essential to have, as you said, the earliest possible notice in the event of a shutdown.
I struggle again with what was in place before. I'd heard there was a labour dispute at Chalk River a number of years ago, and it was deemed to be an essential service, basically, because it was so important to maintain isotope production.
I'm wondering if there were any protocols in place at that time that could have been used, and if there were, why weren't they? If not, then I guess it's a moot question.