Why have so many Tаjiks been involved in terror attacks this year? The BBC meets the families of the men accused of the Moscow concert hall atrocity and asks security experts what's going wrong.
LONG READ: Tajikistan's terrorism problem
LONG READ: Tajikistan's terrorism problem
LONG READ: Tajikistan's terrorism problem
Why have so many Tаjiks been involved in terror attacks this year? The BBC meets the families of the men accused of the Moscow concert hall atrocity and asks security experts what's going wrong.