The not-so-big secret is that Clinton has basically no experience. She was a bystander during her husband's rise to power, and she's been a senator for New York for 1 1/2 terms. That's it, the whole of it. How important could Bosnia have been, if they sent Sinbad on the trip with her?
Her problem is that she's promoting herself as the qualified candidate, when of course she doesn't have any more qualifications for the job than Obama. So she'll grab on to anything, no matter how small, and try to hold it up as an example of her supposed experience.
By the way - I love how you can't ask a question here without some nut job railing on and on about old Rev. Wright. As if a sermon at church is more important than your actual job qualifications.