B. Al Quaeda has only been "linked" with organizations in the Balkans, whether in Bosnia or Kosovo, by Slobodan Milosevic and his followers, and then never with any supporting evidence.
So I put it to you that your understanding of the situation is faulty, and your conclusions suffer accordingly.
There is a wealth of evidence refuting this claim, mostly in the case of Bosnia. Besides links by swarthyguy and Destro above, one of the best articles in the mainstream press was published in the LA Times, titled: Terrorists Use Bosnia as Base and Sanctuary.
Unfortunately, one cannot reprint an LAT article and now cannot even read the original without a (free) subscription. So I reprint here the first 3 paragraphs:
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LA Times, October 7, 2001
Terrorists Use Bosnia as Base and Sanctuary
U.S. sees possible threat from militants who came to help Muslims fight Serbs, Croats in '90s, then became citizens. Some have ties to Bin Laden.
By CRAIG PYES, JOSH MEYER and WILLIAM C. REMPEL, Times Staff Writers
ZENICA, Bosnia--Herzegovina -- Hundreds of foreign Islamic extremists who became Bosnian citizens after battling Serbian and Croatian forces present a potential terrorist threat to Europe and the United States, according to a classified U.S. State Department report and interviews with international military and intelligence sources.
The extremists include hard-core terrorists, some with ties to Osama bin Laden, protected by militant elements of the former Sarajevo government. Bosnia-Herzegovina is "a staging area and safe haven" for terrorists, said one former senior State Department official.
The secret report, prepared late last year for the Clinton administration, warned of problem passport-holders in Bosnia in numbers that "shocked everyone," he said. The White House leaned on Bosnia and its then-president, Alija Izetbegovic, to do something about the matter, "but nothing happened," the former official said.