▁the ▁search ▁with ▁increased ▁dil ig ence . ▁The ▁N ixon ▁presiden cy ▁later ▁would ▁act ▁to ▁extend ▁the ▁reach ▁and ▁scope ▁of ▁Cha os ▁and ▁like ▁domestic ▁surve ill ance ▁activity . ▁In ▁ 1 9 6 9 ▁int ra - ag ency ▁opposition ▁to ▁Cha os ▁arose . ▁Hel ms ▁worked ▁to ▁fin esse ▁his ▁critics . ▁Lawrence ▁Houston , ▁the ▁C IA ▁general ▁coun sel , ▁became ▁involved , ▁and ▁Hel ms ▁wrote ▁an ▁office ▁memor and um ▁to ▁justify ▁the ▁Cha os ▁operation ▁to ▁C IA ▁officers ▁and ▁agents . ▁ ▁Meanwhile , ▁the ▁F BI ▁was ▁reporting ▁a ▁steady ▁stream ▁of ▁data ▁on ▁domestic ▁anti - war ▁and ▁other ▁' sub vers ive ' ▁activity , ▁but ▁the ▁F BI ▁obst in ately ▁refused ▁to ▁provide ▁any ▁context ▁or ▁analysis . ▁For ▁the ▁C IA ▁to ▁do ▁such ▁F BI ▁work ▁was ▁considered ▁a ▁clear ▁viol ation ▁of ▁its ▁char ter . ▁N ixon , ▁however , ▁" rem ained ▁convinced ▁that ▁the ▁domestic ▁diss idence ▁was ▁initi ated ▁and ▁n urt ured ▁from ▁abroad ." ▁ ▁A ▁young ▁lawyer , ▁Tom ▁Charles ▁H ust on , ▁was ▁then ▁selected ▁by ▁N ixon ▁in ▁ 1 9 7 0 ▁to ▁manage ▁a ▁marked ▁increase ▁in ▁the ▁surve ill ance ▁of ▁domestic ▁diss ent ers ▁and ▁protest ers : ▁a ▁multi - ag ency ▁investig ative ▁effort , ▁more ▁thorough ▁and ▁wider ▁in ▁scope . ▁Cal led ▁the ▁Inter ag ency ▁Committee ▁on ▁Int elligence ▁( IC I ),