I have tried and tried but have so far failed to find anything released by Wikileaks that I think needed to be in the public domain.
There are some things that need to be leaked; government corruption or complicity in crime, military plots to overthrow the government and other such things. Other than that, most things are classified and confidential for good reason. All this has done is cause embarrassment for many countries and with no good reason that I can find. Indeed, some things which are being leaked are positively irresponsible - which sites America feels are vulnerable to attack is a good example. I can think if no one in the public arena who benefits from that info other than those who wish to use it in the wrong way.
Julian Assange is not a terrorist and he doesn't deserve to be executed (Sarah Palin and her chums really are a worry) but he should expect to be prosecuted and I will have little sympathy for him if and when that happens.