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</html><description>The world&#x2019;s deadliest weapons are also the stealthiest. The United States, Russia, China, Britain, and France all have fleets of submarines that carry nuclear missiles. The most advanced of these subs are nearly undetectable and can stay submerged for months. A U.S. Trident nuclear submarine carries 24 missiles, each fitted with several independently targeted warheads....</description><thumbnail_url>https://engineering.jhu.edu/magazine-archive/wp-content/uploads/2014/06/digital-defense-sidebar.jpg</thumbnail_url></oembed>
