Absolutely dead on, Lizzie Cornish 1.

GuestJD, if the portests and placards don't make a difference, is that a reason not to try? (If so, I wish those brain-dead zombies who wve their placards to order at US political conventions would get the message.) But of course they can, and do, make a difference. And Lizzie Cornish gave you the most egregious example: the Vietnam War.