Since we are not allowed to criticize a country anymore if it invades its neighbors:

Organizers of this year’s Eurovision Song Contest are installing special anti-booing technology in anticipation that Russia’s entry may get a hostile reception at the event this Saturday.

The ESC is there to promote a happy, peaceful Europe and if it can’t achieve its goals, opponents will be silenced. At least this behavior is following a good ol’ Russian tradition:

Link.