Rudolph_X writes:

Like weathermen, scientists are often wrong, as well. The scientists
say, "We can tell you the exact path of the orbit of the asteroid
Toutatis." Do you trust them?

Depends on what is meant by "exact". It's not known to an infinite
number of decimal places. If someone claims otherwise, don't trust
them.

"Don't worry, it is not going to hit
Earth," is what they say. But can you be certain?

Yes.

In the quote that I gave above, preceeding the link to the artilce, the
scientists says, "...the orbital change was quite extraordinary. 2004
FU162 was deflected by about 20 degrees because of the Earth's gravity.
I've never seen anything like that before." He didn't give an
explanation of why the asteroid appeared to have changed the 'predicted'
course.

That's because it didn't change the predicted course. The amount of
the deflection is predicted from the gravitational perturbation of the
Earth on the asteroid.