TEHRAN, Iran — Nowhere in Tehran feels safe anymore. The city is covered in smoke. The days feel ordinary, but the nights are terrifying. No one knows what might be targeted next. Military bases and police stations are being struck, but police stations are often close to residential neighborhoods. One I passed today looked like something out of doomsday. A friend of mine was near the police station in Niloofar Square when it was attacked. The building was reduced to powder, and the residential