Michio Kaku warns of potential megaqakes

"In our life time, we could very well see one of these cities destroyed," Kaku said. "Los Angeles, San Francisco, Mexico City, Tehran, Tokyo."

Kaku pointed to changes in the physical structures of human civilization, and how the new composure poses many risks. "We are creating mega cities where there used to be fishing villages," he said
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We expect Dr Kaku's lecture this weekend in Saudi Arabia, about ET technology