Opening a new product and tampering it is called fraud. not to mention it violates numerous trade rules.
Edit: I wouldn't be surprised if there's a class action suit because of this.
[Edited by bryanskrantz, 8/25/2011 6:32:19 AM]
Edit 2: to add further insult to injury, arstechnica.com/gaming/news/2011/08/gamestop-responds-to-deus-ex-controversy-removes-game-from-shelves.ars
[Edited by bryanskrantz, 8/25/2011 7:53:50 AM]
Because Gamespot sells a whole lot of games.