> "Naturally when you see the percentages go up, it doesn't make you feel warm and fuzzy and good," he added, But as astronomers gather more data, he explained, the probability will likely edge up before rapidly dropping to zero.

This seems like it's more of a data anomaly then a real chance. I'm personally not worried because what is worrying gonna do. If this thing is really on a collision course with Earth and will strike and wipe us all out then I guess that's how we all go out. I'm honestly curious though if something like this is a "city killer" or a "world killer".