The Supreme Court agreed Monday to decide whether old cases are affected by a 2-year-old ruling reiterating that the Constitution guarantees a criminal defendant the right to confront his accusers. At the time it decided Crawford v. Washington, a major criminal law case, the high court did not say if its ruling was retroactive. Multiple inmates have brought appeals claiming that like Michael Crawford, their Sixth Amendment constitutional rights were violated. The high court had thrown out Crawford's conviction for assaulting an acquaintance he had accused of trying to rape his wife. His wife, Sylvia Crawford, did not testify at...