Migrant workers are enduring persecution across Russia following the terrorist attack on the CrocusCity Hall entertainment complex outside Moscow in late March. The crackdown has resulted in mass detentions and the expulsion of guest workers. Moscow experienced its deadliest terrorist attack in the last 20 years on March 22, an episode that claimed the lives of 144 people. Four leading suspects detained in the aftermath of the attack turned out to be citizens of Tajikistan. Since then, the wave of migrant-phobia has intensified in Russia. Russian authorities have tightened immigration rules fo…