ation ", ▁a ▁look ▁at ▁changes ▁he ▁bel ieves ▁are ▁necessary ▁for ▁the ▁D IA ▁in ▁the ▁future . ▁ ▁In ▁June ▁ 2 0 1 3 , ▁Michael ▁F lyn n ▁became ▁the ▁first ▁U . S . ▁officer ▁to ▁be ▁allowed ▁inside ▁the ▁Russian ▁military ▁intelligence ▁( GR U ) ▁headquarters ▁in ▁Moscow , ▁where ▁he ▁arrived ▁at ▁the ▁inv itation ▁of ▁the ▁GR U ▁chief ▁General ▁Ig or ▁Ser gun . ▁His ▁follow - up ▁trip ▁to ▁visit ▁the ▁GR U ▁H Q ▁as ▁Director ▁of ▁D IA ▁was ▁not ▁allowed . ▁ ▁Stefan ▁Hal per , ▁who ▁worked ▁for ▁three ▁Republican ▁pres idents ▁and ▁was ▁a ▁long time ▁inform ant ▁for ▁the ▁American ▁intelligence ▁community , ▁had ▁a ▁February ▁ 2 0 1 4 ▁encounter ▁with ▁F lyn n ▁at ▁a ▁London ▁intelligence ▁conference . ▁Hal per ▁became ▁so ▁al ar med ▁by ▁F lyn n ' s ▁close ▁association ▁with ▁a ▁Russian ▁woman ▁that ▁a ▁Hal per ▁associate ▁expressed ▁concerns ▁to ▁American ▁authorities ▁that ▁F lyn n ▁may ▁have ▁been ▁comprom ised ▁by ▁Russian ▁intelligence . ▁F lyn n ▁was ▁forced ▁out ▁of ▁the ▁D IA ▁six ▁months ▁later , ▁although ▁public ▁accounts ▁at ▁the ▁time ▁c ited ▁other ▁reasons ▁for ▁his ▁removal , ▁including ▁his ▁management ▁style ▁and ▁views ▁on ▁Islam . ▁Hal per ▁was ▁later ▁a ▁central ▁figure ▁in ▁Sp yg ate , ▁a ▁consp i racy ▁theory ▁initi ated ▁by ▁President ▁Donald ▁Trump ▁that ▁assert ed ▁the ▁F BI ▁had ▁plant ed ▁a ▁sp y