The US government has adamantly refused to extradite Gulen to Turkey, standing behind the request that the Turkish government should submit evidence against Gulen to the US government. But that was exactly the stance of the Taliban: they said that they would surrender Bin Laden to the US government if the US were to submit evidence of his complicity to the Taliban regime. But the US was too eager to go to war to bother with evidence (which it had at the time, or shortly after).