Multimillion-dollar Diamond Heist in Brussels

As a passenger plane was loading cargo at the airport in Brussels today, heavily armed and hooded thieves dressed as policemen drove onto the tarmac, flashing the blue lights of two black vehicles. Barely five minutes later, they were gone — with many millions of dollars worth of polished and uncut stones. No shots were fired and nobody was hurt, but the bold and dramatic robbery could have consequences for the world's trade in diamonds. Daniel Michaels is aviation reporter in Brussels for the Wall Street Journal.