Blacks make up 12% of the US population and 38% of the federal prison population.
Whites make up 72.4% of the population and only 34% of the federal prison population. This is after a severe drop over the last decade for incarcerated blacks.
You can read about the advancement here:
http://www.nytimes.com/2013/02/28/us...hows.html?_r=0
Interestingly enough, another article came out on 2.27.13.
It says that the wealth gap between blacks and whites has tripled in the last 25 years.
http://www.usatoday.com/story/money/...owing/1948899/
Blacks also have more than twice the high school drop out rate than whites.
http://nces.ed.gov/programs/digest/d...s/dt10_113.asp
so, you either think these facts are due to blacks being categorically inferior to whites or it is due to a system that is stacked against them.
EDIT: These were the first three things off the top of my head. I'm sure...
voting rates.
Percentage in elected office.
Likelihood of being a victim of violent crime.
Poverty rate.
life span
college degrees
higher degrees
and incalculable other conditions vastly favor whites.