Could he move out of range of the explosion and then fire? No. There were only twelve seconds left before he had to start the pull-out. It would take him longer than that to get to a safe range, get into position, and fire. He'd be dead anyway, as the ship plunged into the atmosphere and burned up. And to pull out without firing would be saving his own life at the cost of the lives he was under oath to defend. That would be sheer cowardice. * * * * * He hesitated briefly, shrugged his shoulders as well as he could inside his flying suit, and snapped a switch on the instrument panel. A set of cross hairs sprang into existence on the screen. He gripped a small lever which projected up from his right armrest; curled his thumb over the firing button on top of it. Moving the lever, he caused the cross hairs to center on the warhead. He flicked the firing button, to tell the fire control system that _this_ was the target. A red light blinked on, informing him that the missile guidance system was tracking the indicated target. He hesitated again. His body tautened against the straps holding it in the acceleration couch. His right arm became rigid; his fingers petrified. Then, with a convulsive twitch of his thumb, he closed the firing circuit. He stared at the screen, unable to tear his eyes from the streak of light that leaped away from his ship and toward the target. The missile reached the target, and there was a small flare of light. His radiation counter burped briefly. The target vanished from the radar, but the infrared detector insisted there was a nebulous fog of hot gas, shot through with a rain of molten droplets, where the target had been. That was all. He had destroyed the enemy warhead without setting it off. He stabbed the MISSION ACCOMPLISHED button, and flicked the red-handled toggle switch, resigning his status as pilot. Then he collapsed, nerveless, into the couch. The autopilot returned to control. It signaled the Air Defense network that this hostile track was no longer dangerous. It received instructions about a safe corridor to return to the ground, where it would not be shot at. As soon as the air was thick enough for the control surfaces to bite, the autopilot steered into the safe corridor. It began the slow, tedious process of landing safely. The ground was still a long way down. The kinetic and potential energy of the ship, if instantly transformed into heat, was enough to flash the entire ship into vapor. This tremendous store of energy had to be dissipated without harm to the ship and its occupant.