"Yes, but people had forgotten it until the SocioSpecs of Newyork came up with the Troopers. Before the Troopers, governments concentrated on the big weapons, the missiles, the bombs. And the cities, with the Shells, were safe from bombs. They learned to be self-sufficient under the Shells. They were so safe, so isolated, that national governments collapsed. But you Troopers wiped out that feeling of security, when you infiltrated Chi and conquered it." "We scared them, huh?" Gerri said, "You scared them so much that they were afraid to let you have a furlough in the city when you came back. Afraid you Troopers would realize that you could easily take over the city if you wanted to. You scared them so much that they'll let me be killed. They'll actually risk trouble with Mars just to kill you." "I'm sorry about you. I mean it, I like--" At that moment a titanic, ear-splitting explosion hurled him to the carpet, deafened and blinded him. He recovered and saw Gerri a few feet away, dazed, groping on hands and knees. Lane jumped to the window, looked quickly, sprang back. Cybrain pumped orders to his nervous system. "Blaster cannon," he said. "But just one. Gotcha, cybrain. I can beat that." He picked up the black box that generated his protective screen. Snapping it open with thumb-pressure, he turned a small dial. Then he waited. Again an enormous, brain-shattering concussion. Again Lane and Gerri were thrown to the floor. But this time there was a second explosion and a blinding flash from below. Lane laughed boyishly and ran to the window. "Look!" he called to Gerri. * * * * * There was a huge gap in the crowd below. The pavement was blackened and shattered to rubble. In and around the open space sprawled dozens of tiny black figures, not moving. "Backfire," said Lane. "I set the screen to throw their blaster beam right back at them." "And they knew you might--and yet they let a crowd congregate!" Gerri reeled away from the window, sick. Lane said, "I can do that a couple times more, but it burns out the force-globe. Then I'm dead." He heard the 3V newscaster's amplified voice: "--approximately fifty killed. But Lane is through now. He has been able to outthink police with the help of his cybrain. Now police are feeding the problem to their giant analogue computer in the sub-basement of the Court House. The police analogue computer will be able to outthink Lane's cybrain, will predict Lane's moves in advance. Four more blaster cannon are coming down Broadway--" "Why don't they clear those people out of the Square?" Gerri cried. "What? Oh, the Fans--nobody clears them out." He paused. "I got one more chance to try." He raised a mailed glove to his mouth and pressed a small stud in the wrist. He said, "Trooper HQ, this is Lane." A voice spoke in his helmet. "Lane, this is Trooper HQ. We figured you'd call." "Get me Colonel Klett."