By DANICA KIRKA, Associated Press LONDON (AP) — A rat has for the first time won a British charity's top civilian award for animal bravery, receiving the honor for searching out unexploded landmines in Cambodia. Magawa, a giant African pouched rat, was awarded the PDSA's Gold Medal for his "lifesaving bravery and devotion" after discovering 39 landmines and 28 items of unexploded ordinance in the past