War reaps $400 million in 24 hours - don’t worry, it’s just "entertainment"

In the first 24 hours of launch, Modern Warfare 3 - a first-person computer game by Activision Blizzard - has sold 6.5 million copies, earning the game’s publisher $400 million in sales, and enabling them to taut it as the "biggest entertainment launch of all time in any medium". But is this harmful, asks NAJ Taylor