Unless there is some sort of suit going on, and he is ordered to do so by the court, there is no reason for Edwars to take any kind of test.
Why? He says he's not the dad -- what does he have to fear? Prove it.
We could have the results, oh, say, on the morning of Barry's Nuremberg Address, er, acceptance speech.
There is also no reason to go on Nightline [which will be competing with the Olympics] and admit that he was having an affair. /sarcasm>
Now that the affair has become public knowledge, Edwards will have to prove his contention that the child is not his. The NE has offered to pay the costs of the test, but the NE editor seemed to indicate in his interview with Hannity that there is other proof they have that the child is his. Edwards can continue to deny, deny, deny, but he is finished politically. It will be interesting to see if he can pull a Jesse Jackson and continue on with his public policy role. Of course, Jesse admitted the child was his.