Chicago public schools are back in session today after the governing body of the Chicago Teachers Union voted to suspend a nine-day strike. On Tuesday, teacher representatives accepted an agreement with the city calling for a double-digit salary increase over the next three years, as well as compromises over the contentious issues of teacher evaluations and job security. The agreement will now go before a union-wide vote. Uncertainty remains over how many schools Chicago Mayor Rahm Emanuel will try to close. Analysts have estimated as many as 140 Chicago-area schools could face closure in the near future.