How do you communicate danger to people who don’t speak your language? How do you not only alert them, but give them enough information to act even though you will never meet face-to-face? These questions were behind an effort to design a warning for the proposed nuclear waste storage facility inside Nevada’s Yucca Mountain, and they’re similar to the ones you face when trying to design for user security online.

In 2003, the Desert Space Foundation, a Nevada arts organization, hosted an exhibition that showcased novel ideas for a warning sign that would retain both its meaning and its structural integrity for the 10,000 years that Yucca Mountain was projected to pose a hazard. The difficulty of the task manifested itself in the variety of entries. Several artists assumed that familiar symbols like the yellow and black radiation icon would carry the scent of danger across the divide, but not everyone agreed, according to a Los Angeles Times article at the time.

The risk of radiation burns is lower for Internet users (especially with modern LCD monitors), but being online can be dangerous all the same. The recipients of the communication are separated not by time but by their lack of technical expertise. However, the complexity of the threat and the jargon used to describe it is at least as opaque to many people as ancient pictograms can be to us.
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