Think about what you're saying when you say you'll "trust someone with your life". Without any qualifiers, it's a meaningless statement.
Who do I trust to give me the heimlich if I'm choking?
Who do I trust to drive a car I'm in?
Who do I trust to watch my drink?
1/

Who do I trust not to snitch during planning?
Who do I trust not to snitch if caught?
Who do I trust to cover me in a gunfight?
Who do I trust to cover me in a fistfight?
Who do I trust to make medical decisions for me?
2/

These are all situation where you're trusting someone literally with your life. But each represents a different group of people that I would trust.

I trust almost no one with all of these. Some folks I trust with nearly all. Others I trust with one or a few.

3/3

Determine these boundaries. Discuss these boundaries with your comrades. Be open about these boundaries (where appropriate).

This is going to be critical in organizing moving forward. Don't think with a binary trust/don't-trust model.