The big question I've had from since I first heard about this is how did she get the cartridges to Russia in the first place? There's no way it's legal to bring them on a plane from the US.
I'd imagine the Olympic charter flights have a much different security policy from your local Delta Airlines. They're probably more focused on securing the athletes than scouring through their bags.
I didn't know that passengers on chartered flights did not have to go through airport security, or that she was on an Olympic chartered flight. Everything I've seen has simply said she was there to play during the off-season, not anything to do with the Olympics.