Answer based on context:

In his first game at home as the starter for the Redskins, Jason Campbell, again, had an encouraging game completing 11 of 23 passes for 118 yards and two touchdowns. A rather dull first half for both teams saw the scoreboard read 6-3 in favor of Carolina. In the second half Jason Campbell threw a four-yard touchdown pass to Antwaan Randle El and the Redskins took the lead at 10-6. In the fourth quarter Steve Smith scored on an 8-yard pass from Jake Delhomme to give Carolina a 13-10 lead. Later in the fourth quarter Jason Campbell threw to Chris Cooley for a 66-yard touchdown giving the Redskins the lead for good. Carolina threatened near the end of the game, but a Jake Delhomme pass was intercepted in the endzone by Redskins Safety Sean Taylor. With the 17-13 victory, the Redskins record stood at 4-7. Stats

How many more points did the Redskins have compared to Carolina at the end of the game?
4