Daily Journal:

The efforts of the police and special services now, after the explosion, may be considered belated and unnecessary by some. This is not so: past large-scale terrorist attacks - Nord-Ost, Beslan - were also preceded by other terrorist attacks with explosions: McDonald's and several other unexploded cars in 200, the Rizhskaya metro station and two airplanes in 2004. So it’s time to be attentive and understanding yourself - towards people in uniform and without.