Home Security

I could take a hike from my downtown condo and be standing in front of this house where security is enforced by chain link and old-fashioned iron bars on the windows instead of computer-controlled fobs and concierges and security cams. You don't see many people putting bars on their windows these days (there is the small matter of getting out in an emergency). I saw something different on this visit (Sunday for E.A.S.T.) to the area in newer infills and rehabs, though. Reflective mirror windows. I'm guessing for heat transfer and privacy? Like a one-way mirror? It was daytime and they looked exactly like mirrors.