▁Bien ▁Ho a ▁C IA ▁Sp ym aster ▁Or rin ▁De For rest ▁worked ▁with ▁Rod rig uez ▁( wh om ▁he ▁described ▁as ▁" the ▁C IA ' s ▁hot shot ▁pilot ") ▁and ▁his ▁PR U ▁in ▁rolling ▁up ▁the ▁V iet ▁Cong ▁strong hold ▁of ▁An ▁T in h ▁in ▁South ▁Vietnam . ▁ ▁Rod rig uez ▁fle w ▁above ▁the ▁village ▁in ▁a ▁Lo ach ▁light ▁hel ic opter ▁and ▁marked ▁target ▁houses ▁holding ▁V C ▁suspect s ▁with ▁orange ▁smoke , ▁after ▁which ▁the ▁PR U ▁went ▁in ▁and ▁em pt ied ▁the ▁houses ▁of ▁occup ants , ▁l ined ▁them ▁up , ▁where up on ▁they ▁identified ▁suspect s ▁with ▁the ▁assistance ▁of ▁a ▁former ▁V C ▁leader ▁who ▁had ▁been ▁previously ▁captured ▁and ▁was ▁now ▁co oper ating ▁with ▁the ▁C IA ▁whom ▁De For rest ▁identified ▁as ▁" B a ▁T ung ." ▁ ▁The ▁operation ▁n ett ed ▁twenty - e ight ▁V C ▁cadre ▁who ▁had ▁been ▁living ▁open ly ▁among ▁the ▁South ▁Vietnam ese ▁people ▁but ▁working ▁to ▁assist ▁the ▁North ▁Vietnam ese ▁over throw ▁their ▁southern ▁neighb ors . ▁ ▁The ▁mass ▁arrest ▁and ▁det ention ▁of ▁Sub region ▁One ▁V C ▁cadre ▁was ▁the ▁largest ▁operation ▁of ▁its ▁type ▁during ▁the ▁war ▁and ▁for ▁all ▁int ents ▁and ▁purposes ▁broke ▁the ▁V C ▁hold ▁on ▁their ▁strong hold ▁of ▁An ▁T in h . ▁ ▁Iran - Cont ra ▁There ▁is ▁extensive ▁documentation ▁of ▁Rod rig uez ' ▁t ies