The City of Chicago’s Department of Aviation released a request for proposals (RFP) for unarmed security at O’Hare and Midway Airports Tuesday. The RFP for a 60-month contract includes a key labor provision that would bring security officers at the city’s airports in line with unionized private security around the city and county. Those security officers are largely represented by SEIU Local 1, who have been pushing for increased wages and benefits for workers employed by private contractors at the city’s airports.