Scientists at the National Research Council of Canada have developed concrete capable of conducting electricity.
"A new concrete that can conduct electricity may make it possible to construct buildings in which the basic structure does double duty as an electromagnetic shield... Several Canadian and United States government agencies, including the United States Army Corps of Engineers, have approached the research council about using conductive concrete to trap computer signals."
Thanks to Abhijeet Chavan
FULL STORY: A Concrete That Percolates, Keeping Snow and Spies at Bay

Planetizen Federal Action Tracker
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