Mark Strassmann is CBS News' senior national correspondent based in Atlanta. He covers a wide range of stories, including space exploration. Strassmann is also the senior national correspondent for ...

Mark Strassmann is CBS News' senior national correspondent based in Atlanta. He covers a wide range of stories, including space exploration. Strassmann is also the senior national correspondent for ...

Add Yahoo as a preferred source to see more of our stories on Google. Mark Strassmann / Credit: CBS News Mark Strassmann is CBS News' senior national correspondent based in Atlanta. He covers a wide ...