Stephie went to CENTCOM, but left quickly. He was the one Wolfe was referring to when he said that ABC's "lead reporter" had left because there wasn't any "value" to the briefings. More likely, little Georgie left because he learned that the creature comforts weren't quite up to his spoiled standards...
Koppel's still embedded, AFAIK, but I tuned out ABC the second day of the war, and won't be back.