And, it's not like after blowing up the Nord Stream pipelines, launching missiles at a nuclear power plant and target civilians in Donetsk the reputation of Ukraine, us or the Brits could get any worse worldwide.
Russia killed about 300 people, most of them children.
The FSB is just trying to avoid the blame for not protecting their citizens and having the police stand around outside of the theater for more than an hour while the terrorists killed innocent Russian music lovers.