“INS [Immigration and Naturalization Services] records showed that [9/11 hijacker Khalid al] Mihdhar entered the United States again on July 4, 2001, at New York City. CIA and FBI counterterror agents realized Mihdhar’s significance and tried to find him in August 2001, but refused to tell FBI agents in New York because of regulations enforcing the Wall. The FBI agents working on the [USS] Cole case were clearly upset, and said in an e-mail [on August 29, 2001] that ‘whatever has happened to this–someday someone will die–and wall or not–the public will not understand why we were not more effective and throwing every resource we had at certain problems.’ ”
– John Yoo, War By Other Means, Page 80