Does Khalid Sheikh Mohammed have a yearning desire to re-engineer the Swiffer vacuum cleaner? The CIA isn’t telling because that information is classified.

According to Sky News (which credits the story to AP), the jailed 9/11 mastermind requested that his handlers in Romania give him one of the household appliances so he could work on improving the design. This was apparently an effort on his part to relieve the boredom of being incarcerated.

Mohammed’s military lawyer, Jason Wright, has been prohibited from discussing his client’s interest in labor-saving household devices.

“It sounds ridiculous, but answering this question, or confirming or denying the very existence of a vacuum cleaner design, a Swiffer design, or even a design for a better hand towel would apparently expose the U.S. government and its citizens to exceptionally grave danger,” Wright said.

The CIA has said that the vacuum redesign plans, “should they exist,” are classified operational files.