There is more smoking in the Frankfurt airport than in any place in the States. There are smoking areas but they are inside. I didn't find the smoke oppresive but it was definitely more than most Americans are used to these days.
There didn't seem to be a lot of that anal security that we're getting in the States. I had my passport checked once in Frankfurt (and that was to get into the security area and not getting on the plane) and I didn't see a single armed soldger type hanging around. In Frankfurt, air travel is pretty much the way it used to be before 9/11.