"...St Bob gave the clenched fist salute to an audiance who must have thought it meant "something completely different".

I rather doubt that. The clenched fist is still pretty widely recognised and used as a symbol of solidarity and defiance.

No it's not going to change the world the way it needs to be changed, but it might make it a little easier to get it moving that way, and a bit harder for the people in powewr as they try to stop that happening. And there now lot of people who know a lot more about the issues, and a care a lot more then there were before and than there would have been without it. That's worth while.

All right, there are a lot of people with dodgy motives climbing on the bandwagon. But people with dodgy motives only try to climb on a bandwagon when it looks as it might actually be going to get somewhere. Or going to roll over them.
..............

That clip of Neil Young in the Canadian Concert - it's on one of the AOL sites about Live 8 - here. Only thing is, Firefox doesn't seem to be able to play the clips, so I had to use Internet Explorer for once. And for some reason Neil in that list on the page I linked to, along with a lot of other people (such as Great Big Sea - that Canada concert looks to have been a bit different), including those from the concerts in Japan and Jo'burg.

But you can get them via the search engine on the page.