Barack Obama vs. Rev. Wright?

I just want to know, why does Barack Obama have to apologize or denounce his pastor/mentor when I have never once met or even heard of Pres. Bush, Bill Clinton, or any other former presidents pastor? This is all just getting out of hand to me. Blacks and Whites practice different things, religion being one of them, and its about time that some people open their eyes and see it as that. The public is mad because Rev. Wright had some choice words about white america; well what about all the things white america has to say about blacks and no one makes them apologize for. Like people have been saying all along, Rev. Wright and Barack Obama are NOT the same person. Sen. Obama can not choose what comes out of Rev. Wrights mouth. Since Sen. Obama is ahead and they can't find any negative on him, they want to make something out of nothing. This is crazy. The sad thing about it, the people that are not going to look further into the situation are just going to take the medias word.