This is a compilation of reports, testimonies, correspondences, and other products released in November 1998. Highlights include: (1) Internal Revenue Service: Physical Security Over Taxpayer Receipts and Data Needs Improvement (Page 23); (2) Year 2000 Computing Crisis: A Testing Guide (Page 28); (3) U.S. Postal Service: Development and Inventory of New Products (Page 7); (4) Coast Guard's Acquisition Management: Deepwater Project's Justification and Affordability Need to Be Addressed More Thoroughly (Page 26); and (5) Military Prepositioning: Army and Air Force Programs Need to Be Reassessed (Page 13).