Our software is open source already. What is ingrained is the idea among my collaborators that open data is kind of an "us vs them" problem: it's our data, and

Our software is open source already. What is ingrained is the idea among my collaborators that open data is kind of an "us vs them" problem: it's our data, and the public hasn't been demanding access, but if we gave it to them they would just scoop us and steal all the science, or they would do something stupid and force us to disprove it. It's all quite speculative but the limited data releases so far haven't caused the field to collapse as some doomsayers predicted. Meanwhile I'd just like more open data because it would make collaboration easier.