 What is the new problem the American astronauts are left with at the end of the passage?
[Transcriber's Note: This etext was produced from Worlds of If Science Fiction, September 1962. General Finogenov notified Major Winship that the underground blast was scheduled for the following morning. Next morning, before the sunlight exploded, the four of them donned their space suits and went and sat outside the dome, waiting. "Help?" " Nyet ," said Major Winship, exhausting his Russian. "Ah, it's all Russian. A moth's wing of dust would, perhaps, rise and settle beyond the horizon: no more. "I'll try again," Major Winship said and switched to the emergency channel. "Hell, Charlie, I feel stupid sitting out here," Capt. Lawler said. He crossed with the floating moon-motion to the airlock and entered, closing the door behind him. The darkness slowly filled with air, and the temperature inside the suit declined steadily. His foot was lifted for the second step when the floor beneath him rose and fell gently, pitching him forward, off balance. "Well," Lt. Chandler commented, "even though we didn't build this thing to withstand a moonquake, it seems to have stood up all right." Air currents whisked it away and plastered it against a riveted seam of the dome. It's on your right side, midway up. Major Winship said, "they should have made these things more flexible." The sheet began slowly to slide downward, then it fell away completely and lay limply on the floor.
 The barrel has destroyed their air supply.
 The dome has no been compromised.  The barrel has destroyed their air supply.  The calking compound has hardened and become unusable.  They can no longer fix the leek in the dome.