ism ▁over ▁the ▁claims . ▁Serge i ▁Bog dan ov ▁of ▁the ▁F SB ▁press ▁service ▁in ▁Moscow ▁said ▁that ▁the ▁words ▁of ▁a ▁previously ▁unknown ▁individual ▁representing ▁a ▁sem im yth ical ▁organization ▁should ▁not ▁be ▁considered ▁as ▁reliable . ▁Bog dan ov ▁ins isted ▁that ▁the ▁organization ▁had ▁nothing ▁to ▁do ▁with ▁the ▁bomb ing . ▁On ▁September ▁ 1 5 , ▁ 1 9 9 9 ▁a ▁D ag est ani ▁official ▁also ▁denied ▁the ▁existence ▁of ▁a ▁" D ag est an ▁Liber ation ▁Army ". ▁ ▁Red da way ▁and ▁G lin ski ▁ ▁According ▁to ▁professor ▁Peter ▁Red da way ▁and ▁research er ▁D mit ri ▁G lin ski , ▁the ▁invol vement ▁of ▁the ▁Liber ation ▁army ▁of ▁D ag est an ▁is ▁a ▁more ▁pla us ible ▁theory ▁than ▁others ▁and ▁may ▁indeed ▁have ▁perpet r ated ▁them , ▁with ▁or ▁without ▁Russian ▁government ▁assistance . ▁They ▁wrote ▁that ▁if ▁this ▁was ▁the ▁case ▁the ▁group ▁would ▁likely ▁origin ate ▁from ▁the ▁religious ▁conserv ative ▁villages ▁Kar am ak hi , ▁Ch aban m ak hi ▁and ▁a ▁few ▁other ▁neighbour ing ▁villages ▁in ▁central ▁D ag est an . ▁They ▁also ▁wrote ▁that ▁if ▁so , ▁they ▁believe ▁" it ▁is ▁impossible ▁that ▁the ▁Moscow ▁authorities ▁did ▁not ▁know ▁of ▁the ▁plans , ▁at ▁least ▁in ▁general ▁terms ", ▁not ing ▁that ▁" even ▁before ▁Step ash in ▁visited ▁the ▁district ▁a ▁year ▁earlier , ▁they ▁must ▁have ▁been ▁receiving ▁numerous ▁reports ▁from ,