The Clinton presidential library and museum in Little Rock doesn't even have a roof–and won't open for over a year–but operators are already planning special exhibits for this year. The most interesting idea: Bill Clinton thinks people want to know what presidents and their wives read. Thus, his library plans to hook up with other presidential libraries to create the Clinton book club, a list of books presidents are reading, have read, and plan to read. What's more, he wants to include the reading lists of his celebrity pals like, say, Barbra Streisand. Footnote: Bubba might even host book club...