What other terrorist act, you mean?
Ukraine is being destroyed on the battlefield so that's all they have left.
That intelligence officer named Maluk said today that he has operatives inside Russia carrying out operations against both Ukrainians and Russians working against Ukraine.
Most people would shut their pie hole about running intelligence operations in the wake of the terrorist incident in Moscow. This is one of the top Intel officers in Ukraine.
But in this case ISIS did the job. And the Russian police stood around outside and did nothing for over an hour.