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NASA's Kepler spacecraft is starting to put the pieces together in its search for virtual Earth twins in other planetary systems. Kepler, which launched in 2009 , is on the lookout for planets that are about the size of Earth and have temperate surface conditions.

The web is more dangerous than ever. LulzSec, Anonymous, Julian Assange, News Corp. employees--they all make our grandparents wonder if their computers are indeed infected , and require iron-clad protection from McAfee or Symanetc, lest their Windows 98-running Gateway desktops explode.