If you're planning on buying an iPad when it goes on sale this Saturday, you have some deciding to do. As you go about your daily routine, you inadvertently share more personal data than you realize. For example, cell-phone towers can track where you are down to 100 feet. ... Dubai police released video footage of 11 of them. Although it was obviously a very professional operation, the 27 minutes of video is fascinating in its banality. James Cameron has done it again. ... http://bit.ly/dzNXgo