That's an extraordinarily difficult question to answer. I think if you asked people who worked in government, the greatest success for the Freedom of Information Act would be in promoting this more open culture John just spoke about and I spoke about earlier. Even departments that were historically rather closed, such as the Ministry of Defence, are now operating in a more open manner.
I think if you asked journalists or campaigners, they would probably tell you that the greatest success of the Freedom of Information Act—and it was only partly the Freedom of Information Act—was such things as the revelations about MPs' expenses in the U.K., where the Freedom of Information Act is one of the triggers for finding out what MPs had been spending their expense money on. It's also led to the publication of local senior officials' salaries. These are some of the ways in which it has achieved things.
The shortcomings would depend on your point of view. I think officials would point to people not using it within the spirit of the act. They would cite journalists using it to write negative stories by de-contextualizing the information at the local government level.
Similarly, in Canada, under your ATI, there's heavy use by business to gain commercial advantage, which is seen as a rather negative use and not really what the Freedom of Information Act was created for.
From a requester's point of view, they would probably find delay one of the most frustrating things, the fact that they have to wait so long for information.
Australia, and the U.S. to an even greater degree, have been reinvigorated in recent years by greater freedom of information. Australia under Kevin Rudd, and now it seems under the new Prime Minister, has moved quickly to greater openness. And in the U.S., President Obama's first two executive memoranda concerned open government and open data. I think the two countries have been reinvigorated. They have leaders who supported the principles, and they both took a real leap forward in merging freedom of information with open data, e-government, and all these other issues.
As to the social media, one of the fears with freedom of information is that it would mean that officials were no longer anonymous. But we didn't find that those fears came to pass at all. Officials are open and often quite available in the U.K. They didn't find freedom of information was revealing, particularly in giving out the officials' names or anything.
Picking up on this idea of using Twitter and other social media, one interesting example is that a local authority last week in the U.K. decided to Twitter for 24 hours to explain all the work that it did over the course of a single day. This is a wonderful example of transparency via social media. They were able to try to explain to the people exactly what they did during the course of a day, to help them understand.