The Big Dig

6th August 2002 44 mins Season 9 Episode 33

The Massachusetts Central Artery/Tunnel Project, a.k.a. The Big Dig, is the most amazing municipal construction project in U.S. history. Its objective–to replace Boston’s decaying highway infrastructure with 160 new highway miles, half of which run underground and underwater. After 14 years construction, its cost–$11 billion!

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Season 9 · Episode 34

Super Guns

They are the cutting edge in firearm technology. They fight simulated battles on computers, decades before a shot is fired. But will they make the world safer…or more dangerous than ever before? They are Super Guns of Today and Tomorrow.

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