CNN CNN International May 22, 2015 06:06:00
Isis. ivan watson shows us what's at stake. >> reporter: a 2,000-year-old city remarkably preserved in the middle of the desert and now in the hands of isis. the agonysyria's three-year war just got worse. many of its residence will likely flee interer to escape the public executions that the group directs against its opponent. in addition to the human cost of this conflict, there are now fears isis may unleash its wrath on the nearby ruins of palmyra. i viced in 2007 as a tourist on a bus. it is ancient greco roman columns, arches, temples an an amphitheater. this caravan town had been an imp...