Transportation
The Misunderstood Science Behind Fears That a Subway Tunnel Could Blow Up Beverly Hills High School
Earthquakes, underground chemicals, hysteria and emotion all collide in L.A.
Physically, it's not that hard to dig a tunnel. The hard work's taken care of by tunnel boring machines, huge metal monsters that gradually chew through the underworld like hungry worms.
Politically, things get a little more difficult.