Officials: Abducted Nigerian schoolgirls likely split up, taken across border --- Abuja, Nigeria (CNN) -- Nigeria's embattled leader vowed Boko Haram's abduction of hundreds of schoolgirls would be the terror group's undoing, even as authorities admitted Thursday the girls likely have been separated and taken out of the country. -- President Goodluck Jonathan's statements come amid mounting international outrage over the mass abduction and the government's largely ineffective effort to subdue Boko Haram. -- "By God's grace, we will conquer the terrorists. I believe the kidnap of these girls will be the beginning of the end for terror in Nigeria," Jonathan said at the opening of the World Economic Forum meeting in Nigeria's capital city of Abuja. -- He also acknowledged the offers of help from the United States, Britain, China and France, all of which have offered help in the weeks-old search for the girls who were snatched in mid-April from their beds at an all-girls school in rural northeastern Nigeria. -- But the task of recovering the girls appeared to grow more complicated with news that U.S. intelligence believe the 276 girls have been split up. -- "We do think they have been broken up into smaller groups," U.S. Navy Rear Adm. John Kirby, the Pentagon press secretary, said. --- The girls have not been seen since Boko Haram militants abducted them on April 14 from the Government Girls Secondary School in rural Chibok, about 80 miles (130 kilometers) west of Maiduguri and some 600 miles from the capital of Abuja. - More, http://www.cnn.com/2014/05/08/world/africa/nigeria-abducted-girls/