The new weapon is designed to be launched on a ballistic missile fired from a submarine.

Jordanians and Palestinians chant slogans and wave the Muslim Brotherhood flags during a demonstration in the Jordanian capital Amman against Israel's deadly assault on the Gaza Strip March 2, 2008. More than 5,000 demonstrators marched peacefully from the headquarters of the Islamist-dominated trade unions to the parliament building in the city centre to protest Israel's deadly assault on the Hamas-run Gaza Strip. AFP PHOTO/AWAD AWAD (Photo credit should read AWAD AWAD/AFP/Getty Images)