Source?
If you are disputing that the Clinton Administration REFUSED to take custody of Osama Bin Laden - on multiple occasions -- do a google search and research it yourself.
Even the liberal media reported on Sudan's and Saudi Arabia's involvement in that scenario... Clinton HIMSELF admitted he was offered Osama - and declined for reasons that are rational ONLY to a "legacy inventor"...
Now then, if you're looking for the "Source" to the assertion that 9/11 could have been avoided if the Clinton criminals/fools/enablers had taken custody of Osama Bin Laden ---- it would probably be more accurate to say it would have been delayed until another Islamic Radical A$$hole could be found to step forward and lead the the lunatics..
If all of this is "new news" to you -- you must either get out more often, or get treated for "denial"..
Semper Fi