a fairly sizable asteroid has been spotted on a trajectory that gives it a fairly decent chance (about 1 in 4,000) of striking the Earth. That is actually better odds than the chance you will get killed in a traffic accident any time you get in a car (1 in 6,700). At one point the odds were actually being calculated at 1 in 300. So this particular object has raised a few eyebrows, to put it mildly. Enough that some people think it would be time to call the drilling crew together. Or something.