Second Interim Report of the Special Master received and ordered filed. Exceptions to this Report and the first Interim Report of the Special Master, with supporting briefs, may be filed by the parties within 45 days. Replies thereto, if any, may be filed within 30 days. The amici curiae may file exceptions and replies within the time allowed the parties. Further consideration of motion of Nebraska for leave to file an amended petition deferred to consideration of the exceptions and replies.