Terrorist attack on the outskirts of Moscow kills 143 people, possibly tightening regulations on migrant workers. The perpetrators are believed to be from Central Asia.
Regulations on immigrant workers have reportedly been tightened in Moscow, suggesting authorities are stepping up crackdowns. The four perpetrators charged in this case are reported to be nationals of Tajikistan in Central Asia, while the BBC and Russian independent media are reporting that regulations against migrant workers may have been significantly tighter in Moscow. The number of people killed in the terrorist attack at a concert hall on the outside of Moscow was 143.