After Machete Attack, Policeman Saves Own Hand By Grabbing It - sang-froid. The Colombian policeman had intervened to break up a brawl earlier this month in San Cristóbal, just south of Bogotá, when his lower right arm and his right hand was severed with a machete. In spite of the "stress" of the situation, Yaso told newscaster this past weekend he had the wherewithal to use his left hand to pick up his right hand and take it with him as he was rushed to the Police Central Hospital. After a nine-hour surgery, he is expected to recover "most" of this arm and hand mobility within a few months. The surgeon, Dr. Hernando Laverde, told