BOGOTA, Colombia (Reuters) - Colombian police have found a homemade submarine capable of carrying $200 million (107.8 million pounds) worth of cocaine on a Pacific Ocean smuggling mission, police say. Police, who acted on a tip, made no arrests after finding the submarine hidden in the port of Tumaco, near the border with Ecuador, the Administrative Security Department detective force said on Friday It was the second publicized case of Colombian drug smugglers trying to use submarines. In 2000, another underwater vessel was found far from the coast in the Andean mountain capital, Bogota. "They started building the submarine about...