“On Dec. 26 last year [2000], the German police announced a blow against Mr. bin Laden, arresting four men in Frankfurt on terrorism charges and seizing an arsenal of rifles, handguns, machine guns, homemade detonators, a grenade, false documents and a quantity of potassium permanganate for potential bomb-making. The police…said the men had received training in Mr. bin Laden’s camps.”
– Steven Erlanger, “Investigators Discover That 3 Attackers on Planes Attended Same German University,” The New York Times, Sep. 17, 2001