Brink's issued a statement today confirming that an armed gang attacked a Swiss-bound Helvetic Airways plane at Brussels Airport on Feb. 18, stealing an unknown amount of diamonds. The Antwerp World Diamond Centre has put the value of the goods — both rough and polished stones — at $50 million. Brink's employees were loading the plane when the robbers struck, but no injuries were reported. Brink's had been shipping a portion of the diamonds that were stolen, but the c...