There is a huge defense angle in that the military have always been rested in an underwater location system. But as with g p s, i think we're going to and that some of the major applications are things that no one's even thought of yet. It's one of these things where if you build it, they will come. O. David thinks, very much for joining us.
Demonstrations that eventually ousted the prime minister have cost lives, but the protest mood is not fading: many want every member of the storied Rajapaksa family out of government. We examine an effort to develop undersea GPS and learn why a watery sat-nav would be so useful. And why 1972 was such a formative year for music in Brazil.
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