VILLAVICENCIO, Colombia -- Two bombs exploded in a provincial capital of Colombia on Sunday, killing 12 people, wounding dozens and stoking fears that Colombia's civil war is becoming one of indiscriminate terrorist attacks. No one claimed responsibility for the blasts in Villavicencio shortly after 1 a.m., but police suspected the country's main rebel group, the Revolutionary Armed Forces of Colombia, or FARC, was behind it. A small explosive device had gone off minutes earlier, attracting people who were in bars and restaurants on a warm weekend night. Then a bomb -- located underneath a car parked on the street --...