I have done my research, my friend. I have considered both side of the story.
There are no certainties in this world, and I do not think that the scientists have all the answers, but on this subject, I think they are right.
I don't see why NASA (along with all the other scientists in the world) would hid this from us - after all, they have released information about another near earth object coming for us in 2029/ 2036, which is a possible impact risk.
http://neo.jpl.nasa.gov/apophis/