Texas On the Rocks

I liked the first couple of books in the series, but did not care for this one much.
There was some good cloak & dagger stuff, although it was not as interesting to me as the straight-forward "down with the Russkies" adventure of the first in the series, but I didn't like the principle characters, and thought the McGuffin unwieldy.

The science foundation was intriguing but iffy.