Although Philippine authorities advised American authorities of the alliance between the Abu Sayyaf, Osama bin Laden’s al-Qaida, and American neo-nazis, the US appeared to ignore the warnings; until Sept. 11. ......
And more...
But even before that, in 1993, when the Abu Sayyaf was in its infancy, the same group met with Nichols and another American—believed to have been executed Oklahoma City bomber Timothy McVeigh—at a Dole labeling plant near General Santos City.
Another article published in the Indianapolis Star gives further detail on possible connections.
If there was a legitimate connection between the Oklahoma City bombing and Al Qaida, then things are even worse than they appear. On the other hand, how many home grown neo-nazis really rejoiced, seeing the Pentagon and the WTC trashed? My guess is that the enormity of the act alienated all but the most hard core members, and has limited whatever co-operation previously existed.

