Did you know Obama’s health care bill contained a $20 billion a year tax on the richest Americans? I didn’t until I stumbled onto a mention of this the other day, although writing about politics is my life and I knew enough to be angry at the gutting of a national public option. I asked a dozen other friends, half of whom work in health care or health care policy and most of whom are fellow political junkies. None of them knew either. If those who follow these issues intensely don’t know about something that all of us would cheer as a step toward getting the wealthiest to pay their fair share, most American voters sure aren’t going to know either.