U.S. prosecutors have postponed their showdown with Apple by two weeks to try a “third party” method for unlocking the iPhone used by San Bernardino shooter Syed Rizwan Farook, Reuters reports. A federal judge granted the Department of Justice’s request to stall the hearing until April 5 while the FBI tries the newly discovered method to unlock the phone, which is at the center of a case which has seen Apple refusing to cooperate…