Bio - I think there are quite possibly a LOT of witnesses just like your brother......but they tow the line anyway and they don't mutter a word of doubt because they don't know who they can trust. Wives, brothers, friends can all turn on you in a heartbeat and ruin your life.
My honest opinion is that there are thousands if not tens of thousands of witnesses that feel the same way your brother does....but.....who do they dare talk to?