We will never know how Al-Qaida vacuum technology might have changed the world:
Confined to the basement of a CIA secret prison in Romania about a decade ago, Khalid Sheikh Mohammed, the admitted mastermind of the 9/11 terrorist attacks, asked his jailers whether he could embark on an unusual project: Would the spy agency allow Mohammed, who had earned his bachelor’s in mechanical engineering, to design a vacuum cleaner?
When asked whether the technology exists, the CIA was characteristically cagey:
The AP asked the CIA for copies of the vacuum designs or any government records about them under the Freedom of Information Act.
The CIA responded in a letter to the AP that the records, “should they exist,” would be considered operational files of the CIA — among its most highly classified category of government files — and therefore exempt from ever being released to the public.