While Obama should not criticize Sarah Palin's limited experience - as it only draws attention to his own limited experience - he shouldn't hesitate to criticize John McCain's obvious double standard.

By not pointing out the hypocrisy Obama is letting the republicans get away with what they have been doing for years by criticising others for not living up to the standards they demand of others.

Left unchallenged you will see continue to see strong criticism of Obama's limited experience while they ignore Palin's. And yes the American people are dumb enough not to see the double standard. You have to make it not just obvious but so they can't ignore it. Do that and the criticism of Obama's limited experience will quickly disappear. Pretend you don't have to deal with it and it will haunt Obama right up to election day and beyond.