I'm impressed because having read that book (did you?) I have an idea of how much work went into planning and preparing for the task. If a diamond heist was as

I'm impressed because having read that book (did you?) I have an idea of how much work went into planning and preparing for the task. If a diamond heist was as equally elaborate and was pulled off successfully (with no one hurt) then yes I would probably be equally impressed. I wouldn't consider not getting caught their biggest feat by any means. I think there is probably a larger risk of hurting someone than getting caught in the method and approach they used. The feat is in anticipating and minimising the risks they were taking. I think whether or not you believe what they did was right is irrelevant. You are allowed to be horrified by what they did and yet still acknowledge that it took a huge amount of effort and dedication.