Taxing Roth IRA accounts above $5 million could set a precedent for further taxation on retirement accounts, though it is currently expected to affect a very small percentage of accounts.
"if this happens it certainly sets the precedent that if it starts here where does it end there's really no easy solution around this but from the way I see it these accounts are far from the norm very few of them exist and I'm sure far more people have made Investments like this and lost money than have made enough to be targeted from Congress with attacks on top of that"