CNN CNNI Simulcast April 22, 2014 07:08:00
And we've had unconfirmed reports this activity consists of vehicles and increased numbers of personnel. but the south korean defense ministry are being very, very tightlipped about the source of the intelligence which is being shared with the americans. however, they are taking it seriously. they've activated a special task force which is keeping a close eye all developments. >> of course, we know that u.s. president barack obama will be traveling to seoul at the end of the week. how imminent is this possible nuclear test? can they work that out? any indication of when it might happen? >> rep...