PITTSBURGH — Steelers running back Rashard Mendenhall wrote a "clarification" of his comments made Monday on Twitter regarding the death of Osama bin Laden. In a tweet posted around 1:00 p.m. on Wednesday, he linked to an in-depth blog post. In that entry, he wrote that he does not support bin Laden, and that he aimed clear things up, for not only himself, but also the Steelers. On Monday, Pittsburgh’s leading rusher caused enough of a stir with his tweets, that the Steelers felt compelled to release a statement. Among Mendenhall’s posts, the day after the bin Laden news broke,...