DENVER (AP) — Colorado's dream of a futuristic transportation system that would move passengers and freight at speeds of nearly 700 mph (1,126 kph) using a pod and tube system is estimated to cost about $24 billion to build.
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Sun, 09/24/2017 - 1:58pm
DENVER (AP) — Colorado's dream of a futuristic transportation system that would move passengers and freight at speeds of nearly 700 mph (1,126 kph) using a pod and tube system is estimated to cost about $24 billion to build.