A four-year delay of the Green Line Extension bereft of any tangible commitments from the Commonwealth is simply unacceptable. Somerville deserves a transparent, accurate timeline for the Green Line Extension, with clear deliverables. Fundamental matters of social justice, economic justice and environmental justice are at stake in this project. Governor Patrick promised to extend rail transit to the most densely populated community in New England and he needs to break ground while he is still Governor. The State must do better than declare it is going to miss the legally mandated 2014 deadline for the extension with vague promises that it is still "behind" the project.