Project MKDELTA CIA Covert Operations Support Program
Project MKDELTA was not simply another name for MKULTRA. MKULTRA was the research-and-development container. MKDELTA was the operational-control channel: the mechanism by which CIA materials developed under MKULTRA could be used abroad in approved clandestine operations. That distinction is what makes MKDELTA darker than many better-known mind-control files. The surviving record does not let us reconstruct every target, country, substance, or operation because key MKULTRA records were destroyed. But the Senate and CIA record is still explicit enough to matter: MKDELTA governed overseas use of MKULTRA materials; such materials were used on a number of occasions; drugs were used primarily as aids to interrogations; and MKULTRA/MKDELTA materials were also used for harassment, discrediting, or disabling purposes. The strongest public evidence therefore supports MKDELTA as the operational edge of the CIA behavioral-control program, not as a vague urban legend.