Coming off back-to-back losses in overtime, the Steelers looked to turn things around.  With the return of Ben Roethlisberger to action, the Steelers hosted the 3-8 Oakland Raiders. The Steelers would open with a 33-yard field goal by Jeff Reed.  Oakland responded with a 48-yarder by Sebastian Janikowski, and both teams were tied 3-3 as the 2nd quarter began.  Roethlisberger found Santonio Holmes for a 34-yard TD pass to begin the 2nd quarter.  Oakland would put 3 points on the board after a 43-yard field goal halfway through the quarter, and the Steelers headed to Halftime with a 10-6 lead. There followed a scoreless third quarter, and in the fourth Pittsburgh's defensive struggles were exploited by the Raiders, who were able to find the end zone three times. Bruce Gradkowski would find Chaz Schilens for a 17-yard TD pass with 8:21 remaining in the game, giving Oakland their first lead of the game, 13-10. Pittsburgh responded just one minute later with a 3-yard TD run by Rashard Mendenhall.  But Oakland would not be stopped.  Gradkowski hit Louis Murphy for a 75-yard TD pass with 5:28 remaining, and the Raiders went up 20-17. Roethlisberger would make an 11-yard TD pass to Hines Ward with 1:56 remaining and the Steelers would regain the lead 24-20.  All that was needed was for the Steelers' defense to keep Oakland out of the end zone and they would win. But with nine seconds remaining, Gradkowski would once again find Louis Murphy open in the end zone for an 11-yard TD pass and the Raiders would win 27-24. The game would mark the fifth time in six games that the Steelers suffered a 4th quarter collapse, and the second time in three weeks Pittsburgh had fallen to an opponent with a losing record. At the conclusion of the game, the Steelers had allowed seven plays of 40&#160;yards or longer in their last four games (they only gave up two such plays in 2008).

Based on the above article, answer a question. How many points were the Steelers winning by during halftime?
4