Correction No. 1: An earlier version of this (NYT) article referred imprecisely to the effect of planned Israeli development in the area known as E1. It would not divide the West Bank in two. The proposed development would not, technically, make a contiguous Palestinian state impossible.
Correction No. 2: Because of an editing error, an article about Israel's decision to move forward with planning in an area east of Jerusalem known as E1 described imprecisely the effect of such development on access to the cities of Ramallah and Bethlehem from Jerusalem. It would not completely separate those cities from Jerusalem.