Yep. Chavez began infiltrating plain clothes Cuban agents into his security forces nearly a decade ago. They are thoroughly woven into the fabric, and at some point, if things get really bad, will likely be running the show.
I do not speak Spanish, but am told that the Venezuelan and Cuban accents are to Spanish what American and Canadian are to English...virtually indistinguishable from one another.
The Venezuelan government answers to the Cubans from top to bottom