I wouldn't bother Stevie, there are some people in this thread who seem quite incapable of using any form of sensible logic or reasoning.
"What about Warne?" they keep shouting, and despite being constantly told that Warne actually served his time despite only testing positive for a lesser drug they are incapable of seeing anything other than their own bias.
There are some seriously twisted people in this thread, and I seriously suggest you find a bottle of ketchup and get rid of that rather massive fried sliced potato from your shoulder.
Currently they are being let off because the PCB regulations seem to state that if they as a board don't inform the players correctly then the player is not at fault and therefore can't be asked to take responsibility. So the question is who does take responsibility? The PCB won't, the players won't so it really does all work out far too conviently for them. They were able to hide their two premier quick bowlers from official ICC testing in the champions trophy, and have conviently been able to clear them via a loophole.
End of the day, if the players aren't to blame, then the PCB must be to blame, and if the PCB is guilty of drug cheating, then why not ban them as a whole? Responsibility must be taken somewhere along the lines, and I feel the ICC must take strong steps to ensure that they do not become such a joke that any influence they still believe they have is finally erradicated. Obviously I don't want to see Pakistan banned from International Cricket, and it should just be those two players, but I am pretty sure that all that will happen is the team doctor or someone similar will get the sack as the scapecoat, and the matter will be firmly swept under the carpet.