"Safety, safety and safety is our priority, " Alexander Polinsky, the head of the events department at the Moscow City Hall, told Interfax.

NPR: Russia To Increase Security At Athletics Event

Economists such as Mitchell Polinsky, of Stanford Law School, and Steven Shavell, of Harvard Law School, argue that to deter harmful conduct, punitive damages should be equivalent to the amount of harm caused, multiplied by the inverse of the probability of detection.

ECONOMIST: Punitive damages