Powerful magnets and radar reflectors would be buried inside the berm so that remote sensors could recognize the site as purposefully and elaborately designed.
It would be surrounded by 48 granite or concrete markers, 32 outside the berm and 16 inside, each 25 feet high and weighing 105 tons, engraved with warnings in English, Spanish, Russian, French, Chinese, Arabic and Navajo, with room for future discoverers to add warnings in contemporary languages. Pictures would denote buried hazards and human faces of horror and revulsion.
The same symbols would be printed on metal, plastic and ceramic disks with abrasion-resistant coatings, 9 inches in diameter, that would be buried just below the surface.
Three information rooms would archive detailed drawings of WIPP's chambers and the physics of its hazards on stone tablets. They would also provide a world map showing all other known waste repositories and a star chart to calculate the year the site was sealed.
One such room would stand in the center of the site. Another would be buried inside the berm, its only entrance a 2-foot hole to inhibit theft of the tablets, sealed with a 1,600-pound stone plug. The third room would be off site -- perhaps inside the nearby Carlsbad Caverns.
The final thing WIPP needs is a kind of Rosetta stone, a pictorial dictionary to aid in translation.
The markers will take decades to build and test, to help ensure they stand the test of time. But there's no hurry. WIPP won't be full until 2033. It would then be guarded by the Energy Department for 100 years until it is abandoned; no one who designed the markers would be alive to see them succeed for even a single day.
Inspired by so long a view, one of the site's expert panels, in an epigraph to its report, quoted Rabbi Tarfon, a Jewish sage who lived 1,900 years ago:
"You are not obliged to finish the task, nor are you released from undertaking it."
Once the vault is locked, some of WIPP's advisors want the site left unmarked because any warnings would draw only more attention, they say. Warnings, they argue, would be misunderstood or dismissed, the same way ancient grave robbers ignored curses inscribed on the tombs of Egyptian pharaohs to seize the riches inside.
Leave it bare, they contend, and the site will melt unseen into the harsh New Mexico desert.