Livewire S&P Downgrades Greece by David Taintor 02.27.12 | 12:31 pm 1 CNN reports: Standard & Poor’s downgraded Greece’s credit rating Monday to “selective default” after the government took legal steps to impose losses on all holders of Greek government bonds. Send Tips David Taintor is a New York-based senior editor who oversees breaking news coverage. He previously worked at NBC News.