But Mike controlled communications and that meant control of most everything. Prof had started with control of news to and from Earthside, leaving to Mike censorship and faking of news until we could get around to what to tell Terra, and had added sub-phase "M" which cut off Complex from rest of Luna, and with it Richardson Observatory and associated laboratories—Pierce Radioscope, Selenophysical Station, and so forth. These were a problem as Terran scientists were always coming and going and staying as long as six months, stretching time by centrifuge. Most Terrans in Luna, save for a handful of tourists—thirty-four—were scientists. Something had to be done about these Terrans, but meanwhile keeping them from talking to Terra was enough.