Oh please, expat, I never said anything about it being a model of excellence - deeply flawed, I think you'll find. And I am appalled by the Tobin case, as you are.
My problem with the US justice system is that the most vulnerable in society are the least well protected, and often the most harshly dealt with. If you are poor, you have no $$ for a good lawyer, so you atre forced to settle for a public defender. These are often (though not always)young/inexperienced, vastly over-worked and far less talented than the private laywers those with lots of money can hire.
(and I love America - have lived there for a while and have a degree in US studies