The President and "The Great Wall of Mexico"

"The Great Wall of Mexico." by John Sladek.

"What we need is antiseptic. Make the Rio Grande radioactive. Build a wall," he continued.

"A wall to write on!" Karl said. "A challenge for our painters."

"Sell off advertising space."

Dan cracked his knuckles with unrestrained excitement. "This could be great for the old folks. Give them something to look at, a new interest in life. You realize that there are over a hundred retirement ranches in that area, and that more than half our retired folks live within a hundred miles of Mexico."