Did you get that piece of information from the same creationist website that said he was doing carbon dating?
By the way, on my last major excavation I obtained 31 radiocarbon dates. Does that make me as bad as Leakey in your mind? Was I fishing for the right date and only stopped when I got the one I wanted?
You clearly have no clue about how dating is done technically, nor about how samples are selected for dating. Do you think folks do only one date and trust that implicitly?
In the case of fossils, you can't date the fossils directly. You have to date the volcanic layers above and below them. And you would be a fool to rely on only one date. In fact, those layers are continually dated as new refinements are made in dating technology, and sometimes dates are corrected.
You claim to have degrees in science. Your posts do not reflect the care with which scientists normally present data. Better stay away from those creationist sites.