Not for commercial use. Solely to be used for the educational purposes of research and open discussion. Samples of explosives used in bus attack sent for tests amid speculation bomber wanted to copy 1993 World Trade Center blast ZARAR KHAN; Associated Press Writer AP Worldstream May 16, 2002 Thursday 9:13 AM Eastern Time Authorities investigating last week's bombing that killed 14 people, including 11 French engineers, have sent samples to a foreign lab to determine its origin, amid speculation the suicide bomber may have wanted to copy the 1993 World Trade Center bombing, police said Thursday. Authorities suspected it might...