Simplest way to look at it-
1) IS the Osama tape fake?
Use your eyes. Is that the same man? Remember that in fall of 2001, the man looked near death. The next tape that comes out (the one where he is fat and has a new face and nose) he looks healthy and takes blame.)
No more tapes for 3 years. Then a new one comes out in which he takes blame again (coincidentally amidst large criticism of the war from Kerry) and a whining endorsement for Kerry, 2 days before the 2004 election.
If the tape is fake, you have to ask yourself, "Why would the White house and the CIA lie to us?"
What possible answers can you guys think of? Why would they create 2 tapes - which happen to justify the war, hurt kerry's chances, and basically, just scare people?