again.

Hassan said, "We were just gossiping. It's been years since I've been in
Greater Washington. Lee Chang tells me that Sid Jakes is now a Supervisor.
I worked with him for a while, when I first joined Section G. How about a
glass of wine?"

Ronny said, "Look. If Tommy Paine was connected with this, and it's almost
positive he was, we've got him."

The others looked at him.

"You've evidently been busy," Tog said mildly.

He turned to her. "He's trapped, Tog! He can't get off the planet."

Mouley Hassan rubbed a hand through his hair. "It'd be hard, all right.
They've got the people under rein here such as you've never seen before.
Or they did until this blew up."

Ronny sketched the situation to Tog, winding up with, "The only thing that
makes sense is that it's a Tommy Paine job. The local citizens would never
have been able to get their hands on such a bomb, or been able to have
made the arrangements for its delivery. They're under too much
surveillance."

Tog said thoughtfully, "but how did he escape all this surveillance?"

"Don't you understand? He's working here, in this building, as an employee
of UP. There is no other alternative."

They stared at him.

"I think perhaps you're right," Tog said finally.

Ronny turned to Mouley Hassan. "Can you get a list of all UP employees?"

"Of course." He flicked his order box, barked a command into it.

Ronny said, "It's going to be a matter of eliminating the impossible. For
instance, what is the earliest known case of Tommy Paine's activity?"

Tog thought back. "So far as we know definitely, about twenty-two years
ago."

"Fine," Ronny said, increasingly excited. "That will eliminate all persons
less than, say, forty years of age. We can assume he was at least twenty
when he began."

Hassan said, "Can we eliminate all women employees?"

Ronny said, "I'd think so. The few times he's been seen, all reports are
of a man. And that case on the planet Mother where he put himself over as
a Holy Man. He could hardly have been a woman in disguise in a Stone Age
culture such as that."

Hassan said, "And this Tommy Paine has been flitting around this part of
the galaxy for years, so anyone who has been here steadily for a period of
even a couple of years or so, can't be suspect."

Mouley Hassan thrust his hand into a delivery drawer and brought forth a
handful of punched cards, possibly fifty in all.

"Surely there's more people than that working in thi