Certainly. I will start off, and perhaps colleagues could add.
It's important to remember the response, depending on the situation, will vary greatly. Emergency management is typically bottom up. It begins with first responders: the police, health services or others, and transportation people at an airport. It starts there, and people have to make decisions based on the specific circumstances they're faced with. They do that based on local plans.
Beyond that, sometimes there will be local arrangements at the municipal level and certainly at the provincial level as well, in terms of any infrastructure or additional support that might be needed in a given context. So we build on that. Then there's the federal level. We have an opportunity to work and exchange information further along in the process of managing an event. That's the general approach; it's very much bottom up.