li br arian ," ▁hoping ▁to ▁show ▁that ▁war ▁protest ers ▁were ▁" ordinary ▁fol ks ." ▁In ▁ 1 9 6 8 , ▁she ▁was ▁h ired ▁as ▁Head ▁of ▁the ▁Reference ▁Department ▁at ▁Buck nell ▁University ▁in ▁Lewis burg , ▁Pennsylvania , ▁where ▁she ▁continued ▁to ▁work ▁with ▁peace ▁activ ists . ▁ ▁Harris burg ▁Seven ▁trial ▁ ▁In ▁January ▁ 1 9 7 1 , ▁Horn ▁was ▁contact ed ▁by ▁the ▁F BI , ▁seeking ▁evidence ▁involving ▁Philip ▁Ber rig an . ▁Ber rig an , ▁a ▁Roman ▁Catholic ▁priest ▁and ▁anti - war ▁activ ist , ▁was ▁serving ▁a ▁sentence ▁in ▁a ▁nearby ▁federal ▁prison ▁for ▁burning ▁draft ▁files ▁concerning ▁the ▁Vietnam ▁War . ▁Ber rig an , ▁from ▁his ▁j ail ▁cell , ▁was ▁alleg ed ▁to ▁be ▁plot ting ▁along ▁with ▁six ▁other ▁individuals ▁( H arr is burg ▁Seven ), ▁to ▁blow ▁up ▁he ating ▁t unn els ▁beneath ▁Washington , ▁D . C ., ▁and ▁to ▁kid nap ▁Henry ▁K iss inger , ▁the ▁national ▁security ▁advis er ▁to ▁President ▁Richard ▁N ixon . ▁ ▁Bo yd ▁Douglas , ▁a ▁prisoner ▁in ▁Lewis burg ▁Federal ▁Pen it enti ary ▁on ▁a ▁work / stud y ▁program ▁who ▁also ▁worked ▁at ▁the ▁Buck nell ▁library , ▁relay ed ▁letters , ▁alleg edly ▁including ▁anti - war ▁plot ▁details ▁and ▁love ▁letters , ▁from ▁fellow ▁anti - war ▁activ ists , ▁including ▁Sister ▁L iz ▁Mc A list air , ▁to ▁Ber rig an ▁in ▁prison .