It's a shame they didn't, have enough time to find them.
Please excuse the copy paste
The FBI contacted Marriott on August 30, requesting that they check guest records, and on September 5, they reported that no Marriott hotels had any record of Mihdhar checking in.[50] The day before the attacks, the New York office requested that the Los Angeles FBI office check all local Sheraton Hotels,[50] as well as Lufthansa and United Airlines bookings, because those were the two airlines Mihdhar had used to enter the country.[51] Neither the Treasury Department's Financial Crimes Enforcement Network nor the FBI's Financial Review Group, which have access to credit card and other private financial records, were notified about Mihdhar prior to September 11.[36]
Regarding the CIA's refusal to inform the FBI about Mihdhar and Hazmi, author Lawrence Wright suggests the CIA wanted to protect its turf and was concerned about giving sensitive intelligence to FBI Agent John P. O'Neill, who Alec Station chief Michael Scheuer described as duplicitous. Wright also speculates that the CIA may have been protecting intelligence operations overseas, and might have been eying Mihdhar and Hazmi as recruitment targets to obtain intelligence on al-Qaeda, although the CIA was not authorized to operate in the United States and might have been leaving them for Saudi intelligence to recruit.[16][53]
Please excuse the copy paste
The FBI contacted Marriott on August 30, requesting that they check guest records, and on September 5, they reported that no Marriott hotels had any record of Mihdhar checking in.[50] The day before the attacks, the New York office requested that the Los Angeles FBI office check all local Sheraton Hotels,[50] as well as Lufthansa and United Airlines bookings, because those were the two airlines Mihdhar had used to enter the country.[51] Neither the Treasury Department's Financial Crimes Enforcement Network nor the FBI's Financial Review Group, which have access to credit card and other private financial records, were notified about Mihdhar prior to September 11.[36]
Regarding the CIA's refusal to inform the FBI about Mihdhar and Hazmi, author Lawrence Wright suggests the CIA wanted to protect its turf and was concerned about giving sensitive intelligence to FBI Agent John P. O'Neill, who Alec Station chief Michael Scheuer described as duplicitous. Wright also speculates that the CIA may have been protecting intelligence operations overseas, and might have been eying Mihdhar and Hazmi as recruitment targets to obtain intelligence on al-Qaeda, although the CIA was not authorized to operate in the United States and might have been leaving them for Saudi intelligence to recruit.[16][53]
