The Core

http://theconversation.com/measuring-up-us-infrastructure-against-other-countries-78164

We underbuild much of our infrastructure using just enough material of just enough quality to get by.  Then we undermaintain what we build.

Failing Infrastructure and the Lessons It Teaches
_{http://hackaday.com/2017/07/31/failing-infrastructure-and-the-lessons-it-teaches/}