The treason trial of a key opposition leader in Zimbabwe has been postponed for six weeks, his lawyer said Monday. Morgan Tsvangirai is accused of plotting the assassination of longtime ruler President Robert Mugabe. He denies the charges. The trial, the longest in Zimbabwe's legal history, began in February. In recess for the last month, it had been scheduled to resume Monday with Tsvangirai giving evidence in High Court. But Innocent Chagonda, his lawyer, said the hearing was postponed until Oct. 27. Court officials, noting the trial had delayed other court business, said presiding Judge Paddington Garwe would not be...