The only thing I'll add is that it's important to understand that the “going dark” issue is broader than subscriber information and encryption. It's that, but it's also intercept-capable networks, and datasets sitting in a foreign country that we don't have access to but that are used by Canadians. It is important to understand that “going dark” is a complex issue. It's multifaceted, and it needs to be understood.
I totally agree that it has a huge impact on our investigations. Some of our targets encrypt the vast majority of their communications.