Chapters 2-4 describe an ambitious scientific program that takes full advantage of the project elements outlined above and imposes demanding performance specifications on the enhanced VLA. In this section, we select a few scientific highlights and mention their impact on the goals of the VLA Development Plan. In making this selection, we emphasize projects for which the VLA Development Plan changes the character of the work that can be done, or introduces entirely new capabilities. Many research programs already active on the VLA will also benefit greatly from the proposed improvements, as also described in Chapters 2-4.