The hunt for Bin Laden got the "barrel scrapings, " in Keller's words, who himself had just two months to prepare for his stint in Pakistan.

“巴基斯坦什么也没有做，我们向他们提供所有可能的资源，但是他们非常消极，这深深的让每一个人感到沮丧，”凯勒说。