When we analyse a process, we don't simply measure failure rate, we also measure the failure mode. For instance, take a car which only fails with a probability

When we analyse a process, we don't simply measure failure rate, we also measure the failure mode. For instance, take a car which only fails with a probability 10^(-10) (pick a number you're happy with). Sounds not so bad? Well, what if the failure mode is "destroy the universe"? Not good now, is it? In fact, such a car would simply not be permitted to be used. Anyway, this isn't some big argument against America. It's an argument against perpetrating a system that fails to correct its errors. With criticism, and bugfixes, it will become better.