"Strength forged through sacrifice. Never forget."

That's the motto of the USS New York, one of three U.S. Navy assault ships dedicated to victims of the Sept. 11, 2001, terrorist attacks. But the words are more than a tribute -- they're also a history of the ship itself, built with close to eight tons of steel salvaged from World Trade Center wreckage. That strength and sacrifice likely inspired the more than 1,000 shipyard workers who opted to keep working on the USS New York even after the devastation caused by Hurricane Katrina in 2005.

"No matter how many times you attack us, we always come back," Secretary of the Navy Ray Mabus said at the USS New York's commissioning in 2009. "America always comes back. That's what this ship represents."

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