immortancrow ·
1. **United States Government**: As a prominent scientist and researcher, Vogel's work may have been funded or sponsored by the US government, which may have classified certain documents related to his research.
2. **IBM**: As a researcher at IBM, Vogel's work may have been subject to IBM's internal classification and confidentiality policies.
3. **Vogel Applied Technologies**: As the founder of Vogel Applied Technologies, Vogel may have classified certain documents related to his company's research and development activities.
4. **Other private companies**: Vogel may have collaborated with other private companies or organizations, which may have classified documents related to his work.
5. **Law enforcement and intelligence agencies**: In some cases, law enforcement and intelligence agencies may have classified documents related to Vogel's work, particularly if it was deemed sensitive or relevant to national security.