I absolutely loved the contrast about the two different facets of technology! The two very different uses of technology (nuclear bomb vs. space shuttle to mars) were presented in a wonderfully contrasting manner! Josh's speech to Donna about that very fact- about how we have used technology and how we may use it, and how that was shown while the Isralie PM was entering was very effective.
More is revealed about the VP's character and why exactly Jed chose him was highlighted by his unexpected assistance in solving the entire mystery about who was testing nuclear weapons!
Also I loved the star gazing scenes and CJ's entire side story of being called a chicken!!