The discovery of a small amount of uranium inside a package of scrap metal bars at Heathrow Airport in London has raised a number of puzzling questions that are being investigated by Scotland Yard, headquarters of the London Metropolitan Police (the Met). Investigators said that the uranium, which was found by Border Force staff during routine screening at the airport on December 29, originated in Pakistan, though it arrived at Heathrow on a passenger flight from Oman and, according to a January 11 report in the Guardian, was bound for an Iranian-owned business with offices in the United Kingdom.