the message we're going to send from berlin to stuttgart is usa. if we send this out in the clear to stuttgart it will get there but it will also fall into the hands of any number of people who are monitoring our frequency. so we're going to encrypt this message before we send it to stuttgart. so i'm going to hit the u, then i'm going to hit the s, and then the a. and this is indeed what we would send to stuttgart. using our imaginations again we're no longer in berlin, we're in stuttgart now, we're in a different place later in the day. however, our rotor setting has not changed. so in stuttgart, i'm bringing the message back. my machine in stuttgart is set to 010104, that's not the setting for the day. i'm going to go back, and now in stuttgart i'm going to decrypt the message. here's the f, the u, the y, there's the s, and finally the c. and there's the a. so you can see it works very nicely. a lot of people are not impressed by this, they say things like, well, my grandfather gave me a little orphan annie decoder ring, so what's the big deal. t