The man who shook up American politics in 2000--and is doingso again in 2004--returns to hold both parties' feet to the fire with his straight talk about Bush, corporate government, and the whole political charade. Ralph Nader--relentless activist, brilliant visionary--may also be the most honest man we've got left in politics. And yet from the moment Nader declared his presidential candidacy on Meet the Press , he's faced relentless opposition, mainly...