Yeah buddy. The security service is just like internal affairs for the USPS. It's actually pretty creepy inside the USPS they enter through different doors, they have catwalks with two-way mirrors, etc. The SSF and DCF or whatever they're called (been a while) are super creepy to observe. You are CONSTANTLY being watch when you work there, but unseen faces. There is a reason 'going postal' became a thing. Imagine that atmosphere!