My opinion is that the levels of corruption in the American justice system have always been the same or are tending to decline in aggregate, similar to violent crimes (I don't have any statistics for corruption). It just seems that the opposite is happening because of the ubiquity and lack of cost associated with mass communication. To put it another way, when corrupt actions occur in a particular case, hundreds of thousands and possibly millions of people hear about it. This didn't always used to happen, especially when mass communication was centrally controlled by a few broadcasting corporations.