Home is where the heart is, so they say. But for 20,000 Americans each year, home is where the heart stops beating. According to a 2002 study, that's how many Americans fall victim to fatal injuries in their own homes. At this rate, it will take just 14,750 years for clumsiness and carelessness to wipe out the entire population. Fortunately, al-Qaeda is not aware of this statistic and remains fixated on ka-booming things instead of creating mass clumsiness and carelessness. But is it true tha.