Updated Fri, Sep 13, 2013 2:11 pm
Wednesday, September 18 • 9 p.m.
Are you safe aboard a modern cruise ship? Twenty million passengers embark on cruises each year, vacationing in deluxe "floating cities" that offer everything from swimming pools to shopping malls to ice skating rinks. The average cruise ship has doubled in size in just the last 10 years, and the ships just keep getting bigger
Some engineers fear that these towering behemoths are dangerously unstable, and the recent tragedy of the Costa Concordia has raised new questions about their safety.
In "Why Ships Sink," NOVA brings together marine engineering and safety experts to reconstruct the events that led up to famous cruise disasters, including the ill-fated Concordia, the Sea Diamond and the Oceanos. Are we really safe at sea — or are we on the brink of a 21st century Titanic?