This link is all sorts of depressing and I think it's a shame it was lost among the bickering about whether or not some arbitrary number (100K in this case) makes you rich or not. The top 20% effectively own 90% of the country, and top 1% owns 35%. That is beyond alarming, and nobody seems to give a shit.
Again, the real problem IMO is not even the top 1%. It's the top .1% or even the top .01%. Sure the 1% to .2% have done very well for themselves, but the concentration just goes off the charts as you get to the richest of the rich.