It's been 130 years since the Supreme Court has heard direct arguments about the method of execution -- back then, it was the firing squad. Today, it'll be on a Kentucky case; Kentucky, like California and 35 other states, uses lethal injection. In December 2006, a California judge found that, the LA Times reports, There was "more than adequate" evidence that the state was violating the U.S. Constitution after hearing testimony that lethal injection......