Finished checking in at the Delta counter and took the escalator down to the level TSA runs their version of Checkpoint Charlie. As the escalator descended I noticed a TSO walking towards the bottom of the escalator. Mind you this was nowhere near the TSA document moat dragon or the nude-o-scopes. The Chode said "come with me." Replied to him "Why" figuring that since I was nowhere near Checkpoint Charlie and on the non-sterile side, that he was out of line. He said "hand swab." At that point I pushed back verbally with a "am I being detained" and when he said "no," just walked towards the moat dragon. They call out nearly everyone they could. Counted 2 DHS types with bullet-proof vests, numerous Chicago cops, and a sea of blue shirts. TSA said that they can do any kind of search they want to at the airports, where ever they want to do it, not just on the sterile side. That was news to me. Didn't see any signage saying they could do that on the non-sterile side. At least when I was in the military the bases all had signs saying that once you were on the federal reservation that you could be searched. Fair enough since you were warned. Cops were rude. Guy said "just being rude to get your attention." Figure that is better than having 3 or 4 of them gun me down inside the airport. Suspect that other passengers would have been hit in the crossfire had they opted to do that. Asked for the FSD and they refused to get the FSD or to provide me with a contact number. Suspect this was because they knew they were doing wrong and someone would have been in trouble. Unprofessional doesn't begin to describe it. They ran me through the employee screening area. Talked with the TSO and cop and the cop said he was afraid. Stupid cop. Airport work in the passenger area is much safer than doing an after dark traffic stop. Not impressed with anyone at Midway today. Unprofessional and IMHO disgusting behavior on the part of people who should know better.