ong ▁Su ▁ ▁After ▁four ▁years ▁as ▁journalist , ▁she ▁decided ▁to ▁become ▁an ▁independent ▁internet ▁activ ist ▁and ▁as ▁well ▁to ▁work ▁for ▁an ▁N GO ▁assist ing ▁vulner able ▁groups ▁in ▁def ending ▁their ▁rights , ▁especially ▁in ▁the ▁field ▁of ▁water ▁poll ution ▁and ▁H IV / A ID S ▁through ▁blood ▁trans f us ions . ▁ ▁In ▁solid ar ity ▁with ▁the ▁human ▁rights ▁lawyer ▁Ni ▁Y ul an , ▁she ▁organ ised ▁a ▁protest ▁against ▁the ▁Vice ▁Minister ▁Wu ▁Ha o ▁of ▁the ▁Y unn an ▁Provin cial ▁Pro pag anda ▁Department . ▁ ▁She ▁was ▁involved ▁in ▁comm em oration ▁events ▁linked ▁to ▁the ▁T ian an men ▁supp ression ▁and ▁in ▁solid ar ity ▁actions ▁for ▁human ▁rights ▁def enders . ▁ ▁As ▁a ▁consequence ▁she ▁was ▁“ inv ited ▁for ▁tea ” ▁and ▁for ▁“ ch ats ” ▁by ▁the ▁Chinese ▁authorities ▁and ▁kept ▁under ▁surve ill ance ▁and ▁period ically ▁placed ▁under ▁house ▁arrest . ▁ ▁When ▁in ▁ 2 0 1 0 , ▁she ▁distributed ▁Li ▁P eng ' s ▁Di ary , ▁a ▁book ▁forb idden ▁by ▁the ▁authorities , ▁her ▁home ▁was ▁ra ided ▁and ▁documents ▁were ▁conf isc ated ▁by ▁the ▁police . ▁ ▁Because ▁of ▁her ▁activities , ▁the ▁Be ij ing ▁security ▁department ▁informed ▁S ina ▁( one ▁of ▁the ▁biggest ▁social ▁media ▁network ▁sites ▁in ▁China ) ▁in ▁ 2 0 1 0 ▁to ▁block ▁her ▁name ▁completely ▁as ▁it ▁was ▁de emed ▁" sens itive