Personally I'm expecting the same @#^#ing by our friendly federal government when the boomers all retire and demand my wages be taxed at phenomenal %age to pay for their last gasp of ME-ism; and the fact that I see it coming does not abate my deep anger at the prospect. I've mentioned this before, but I believe (and fear) that what you mention will come to fruition in some sort of fashion. When you consider that there has to be trillions invested in 401(k) and IRA plans, you wonder how long it will be before politicians (from BOTH parties I believe) will look at such $ as they next great tax revenue stream.
What to do? I don't know. I ping Southack, as he is knowledgable in such things economic.
"Personally I'm expecting the same @#^#ing by our friendly federal government when the boomers all retire and demand my wages be taxed ... trillions invested in 401(k) and IRA plans, you wonder how long it will be before politicians (from BOTH parties I believe) will look at such $ as they next great tax revenue stream." 
One problem: who says Boomers are going to retire? Ken Lay didn't. The *me* generation is going to stay in their revenue streams until they are carried away.
Another obstacle: New Nersey. There, in a state with systemic corruption, a massive, all-seeing Democratic Party Machine, Democratic dominance of the Legislature, Courts, and Gubernatorial branches, and union-goon enforcers at the sreet level, they can't even raise sales taxes 1% without a massive popular outcry.
Thus, the Blue-ist, most "me" generation of states shows that raising taxes is very, very unpopular. Try repealing the interest rate deduction from home mortgages and you'll quickly see the American public *B!tc#Slap* such tax-raising nonsense. Attacks on retirement IRA's, 401K's, and other such instruments would be met with even more politically-unviable results.
Woe to the miscalculating politician who "Goes there."