Long-time nuclear waste warning messages are intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years. Nuclear semiotics is an interdisciplinary field of research, first done by the Human Interference Task Force in 1981.

"So why not look for constructive things to use the military for? Why not get some use out of our military resources—particularly if that use makes it less likely that we’ll need to use the military for more violent purposes?"