Originally written on Fox Sports  |  Last updated 11/19/14

CONCORD, NC - OCTOBER 15: Brad Keselowski, driver of the Discount Tire Dodge, celebrates by waving the American flag on track after winning the NASCAR Nationwide Series Dollar General 300 at Charlotte Motor Speedway on October 15, 2010 in Concord, North Carolina. (Photo by John Harrelson/Getty Images for NASCAR)
This will be a busy week for NASCAR -- and not just because Mr. Keselowski is going to Washington. While the Brad Keselowski and the 2012 Sprint Cup championship team will be visiting the White House on Tuesday, the sanctioning body's Research and Development Center will be busy dissecting the rear-end housings from Penske Racing's two Texas cars, along with the No. 56 Toyota driven by Martin Truex Jr. on Saturday night. While we wait for potential verdicts and penalties, here are five other topics to ponder. 1. Careful watch? With the introduction of the new laser platform as part of the inspection process, Sprint Cup Series director John Darby told NASCAR.com earlier this season that "a lot of the gadgets and trickery we had going on underneath the back ends of the cars -- the sideways stuff -- will be much, much easier for us to control." However, if that's the case, why weren't the questionable rear-end housings on the Penske Racing cars discovered u...
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