CNN CNNI Simulcast December 13, 2014 10:07:00
Segregated. essentially allowed to meet freely, to plot. and they had an ingenious way of communicating. >> they were able to write their contact details on the white elastic of their boxer shorts, prison-issued boxer shorts. they networked. they had phone numbers, details of fathers, villages, uncles, whatev whatever. >> reporter: he said it was the incubator of isis. if there was no american prison in iraq, there would be no islamic state now. >> most of the senior leadership and probably a good portion of the mid level management and foot soldiers came from bucca. because tens of thousands ...