Here's what looks to be the same document from the senate intelligence subcommittee website:

https://www.intelligence.senate.gov/sites/default/files/hear...

On pages 123-124:

> A portion of the Research and Development Program of TSS/Chemical Division is devoted to the discovery of the following materials and methods:

> [...]

> 14. Substances which will lower the ambition and general working efficiency of men when administered in undetectable amounts.