Michigan is the latest state to have DNA clear a man imprisoned for years for a crime that he did not commit. What is most striking about the case of Jamie Peterson (right) is that lawyers had fight to re-test evidence that could prove his innocence.  Prosecutors opposed the simple re-testing of evidence in the case that was not analyzed previously (as have prosecutors in other states).  Finally, prosecutors relented and it was shown that it belonged to a man that police had cleared in first-degree murder in 1998....