You might want to take a look at the thoughts in: http://www.wipp.energy.gov/picsprog/articles/wipp%20exhibit%20message%20to%2012,000%20a_d.htm http://www.wipp

You might want to take a look at the thoughts in: http://www.wipp.energy.gov/picsprog/articles/wipp%20exhibit%20message%20to%2012,000%20a_d.htm http://www.wipp.energy.gov/picsprog/articles/wipp%20exhibit%... Where they are basically trying to discuss how to send a message to a future that may have lost our technology, to warn them of the dangers of a nuclear waste dump.