Yeah kind of figured this for a long time...We are just lucky that we haven't been hit by an asteroid yet. Tomorrow Tuesday NASA is going to tell You about it...There is hope though, they are launching a new satellite called sentinel in 2017. Until then I guess we are up the creek. Sentinel is going into a Venus-esque orbit around the sun where it can watch as it happens. Because really what is going to happen after it is spotted? There is an article about it from Gizmodo at this link.