[Answer] Japan's Steel Dragon was the most expensive roller coaster in the world to construct. Why?

Step 1 : Introduction to the question "Japan's Steel Dragon was the most expensive roller coaster in the world to construct. Why?"

...1. it required twice as much steel to protect against earthquakes 2. it required installation of state-of-the-art netting to catch riders thrown from the cars 3. it required 24/7 security detail to protect the intellectual property during construction 4. it required a fire-retardant finish to protect against the dragon's breath

Step 2 : Answer to the question "Japan's Steel Dragon was the most expensive roller coaster in the world to construct. Why?"

it required twice as much steel to protect against earthquakes:

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