Colombia is offering a record 1.4 million U.S. dollars  reward for information leading to the arrest of the man accused of  ordering an attack that killed 21 people Saturday and wounded dozens more. The country's defense minister, Pedro Sanchez, said Iván Jacob Idrobo Arredondo, also known as " Marlon ," was behind the bombing of a motorway in the Cauca region, in the country's southwest, as well as several other nearby attacks.  The explosion Saturday killed at least 15 women on the busy