American student Amanda Knox was on the stand Saturday for a second day, this time facing questions from the public prosecutor in her trial on charges of murdering her housemate about two years ago. Knox, 21, is charged in the death of British student Meredith Kercher, who was her housemate in this university town north of Rome. Kercher, 20, died in what prosecutors say was a “drug-fueled sex game” after suffering a sexual assault
