Do I have to do one of the curricular programs (Data Science, Tech Science, Public Policy, or Political Economy) to graduate in Gov?

No, these curricular programs are optional. They allow students with interests in these areas to focus their courses of study on particular themes, but they are not appropriate for every Gov concentrator, especially since they require additional coursework and limit the flexibility of coursework that can be taken for concentration credit. Concentrators are encouraged to speak with their concentration adviser about the pros and cons of pursuing these programs.