I think the solution is to not make unverifiable claims. Just write a letter and have it stand on its merits. If I can’t disclose the identity of 21 people and

I think the solution is to not make unverifiable claims. Just write a letter and have it stand on its merits. If I can’t disclose the identity of 21 people and have no way of verifying that 21 people did someone, I can just not mention that part.