Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
they are not able to spot the great majority of asteroids out there . i think it is estimated that they can only , so far , spot less than 20% of the ones that get really close , and even most of these are discovered after their passage near earth .Holy crap Marie. I thought they were supposed to be able to spot them way out there before they got that close. Somebody was sleepin on the job.