For most of his GAO career Prof. Wyrsch concentrated in the areas of national security, intelligence, international affairs, and the defense industry. During these years Prof. Wyrsch (1) drafted numerous legal opinions and decisions, and major legally-intensive portions of GAO published reports, (2) testified before Congress, and (3) drafted proposed federal legislation and segments of official congressional reports.

Notable congressional work:

• the federal organizational framework for combating international terrorism,
• the regulation & prevention of over-concentration within the defense industry,
• the regulation of foreign acquisition of U.S. firms (the Exon-Florio Act),
• the designation and handling of classified information by the executive branch,
• the SEC’s implementation of the Foreign Corrupt Practices Act,
• establishing international safeguards against proliferation of nuclear materials,
• the enactment and enforcement of the Federal Computer Security Act,
• the accountability for Presidential campaign contributions & expenditures
• oversight of confidential expenditure accounts in the executive branch, including the White House.
• federal regulation of the export of militarily-sensitive items by defense firms, and
• the establishment & role of Inspector General Offices in federal agencies.