It's a great question.
A number of factors go into it, but let me say this by way of analogy. I'm drawing on my experience now within government.
Say you have a group of people who are taught from when they are hired that everything they do is really important, and it's really important that they keep it secret. They can't tell their wives. They can't tell their husbands. They can't tell their partners. They can't talk about it to anyone. You grow up in a culture where you can't tell any information to anyone. And, of course, we have this inherent idea, I think as humans, that what we do is important. So it's really secret and it's really important.
Then you give the opportunity to people to share information, and what is their default position? In my experience—this is accurate, right?—if you have an access to information request to CSIS, it will be injurious to national security, most of it. If you give one to Foreign Affairs, it will be injurious to international relations. You have the cultural human response to the job that these people have.
Beyond that, there are factors within the government itself that increase that. If I'm at the lowest level and I'm responsible for determining whether information should be shared within a group, my default position is that if I share it I might get in trouble, but I know I'm okay if I don't share it and go back to it. My default position is going to be conservative about it. Then, if I push that up to my boss, well, my boss likely isn't going to undermine me. Their position is going to be to ask whether there is anything else in there that we should keep private.
So you have this inherent cultural secrecy, which I think is very much human nature. It's very natural. But if you want to talk about information sharing meaningfully, permissive actions, as were taken, as you mentioned, in Bill C-51, to say you can now share misses most of the boat. Most of it is not that you can share but will you share; are you willing to share; is the culture there to allow you to share.
I'd add one other thing, which is that being able to share allows you to address the, quote, known unknowns. However, you still have the unknown unknowns. That's where if you had a provision that would, for example, require CSIS to share evidence with the RCMP, then I think you start to address the unknown unknowns, which is that no one has to know that I have to ask for the information, or that someone else is working on something else with a secret that I have to tell them about. It's rather that I'm required to share the information.