They can't be used for any great distances because a man can't stay in a vac suit very long without getting uncomfortable. You have to hop from beacon to beacon, which means that your _average_ velocity doesn't amount to much, since you spend too much time accelerating and decelerating. But a flitterboat is enough to get around the neighborhood in, and that's all that's needed. I got the GM-187 blinker in my sights, eased the acceleration up to one gee, relaxed to watch the radar screen while I thought over my coming ordeal with McGuire. Testing spaceships, robotic or any other kind, is strictly not my business. The sign on the door of my office in New York says: _DANIEL OAK, Confidential Expediter_; I'm hired to help other people Get Things Done. Usually, if someone came to me with the problem of getting a spaceship test-piloted, I'd simply dig up the best test pilot in the business, hire him for my client, and forget about everything but collecting my fee. But I couldn't have refused this case if I'd wanted to. I'd already been assigned to it by someone a lot more important than Shalimar Ravenhurst. Every schoolchild who has taken a course in Government Organization and Function can tell you that the Political Survey Division is a branch of the System Census Bureau of the UN Government, and that its job is to evaluate the political activities of various sub-governments all over the System. [Illustration] And every one of those poor tykes would be dead wrong. The Political Survey Division _does_ evaluate political activity, all right, but it is the Secret Service of the UN Government. The vast majority of the System's citizens don't even know the Government has a Secret Service. I happen to know only because I'm an agent of the Political Survey Division. The PSD was vitally interested in the whole McGuire project. Robots of McGuire's complexity had been built before; the robot that runs the traffic patterns of the American Eastern Seaboard is just as capable as McGuire when it comes to handling a tremendous number of variables and making decisions on them. But that robot didn't have to be given orders except in extreme emergencies. Keeping a few million cars moving and safe at the same time is actually pretty routine stuff for a robot. And a traffic robot isn't given orders verbally; it is given any orders that may be necessary via teletype by a trained programming technician. Those orders are usually in reference to a change of routing due to repair work on the highways or the like. The robot itself can take care of such emergencies as bad weather or even an accident caused by the malfunctioning of an individual automobile.