Wave of Change
How to build a global tsunami warning system in a month

That's a lot of people, 140,000 -- enough people that we ought to do something to make sure it doesn't happen again. So of course, there is lots of talk about tsunami warning systems and global cooperation, but I think that's just going about solving the problem the wrong way. We don't need governments and huge sensor arrays to warn people on the beach about the next huge wave approaching at 400 miles-per-hour. Thanks to the Internet, we can probably do it by ourselves.