One demographics-related social issue that is receiving increased attention is that of the disparity of incarceration (i.e. imprisonment) rates between whites and non-whites. The Pew Research Center provides some analysis on this matter, particularly the chasm between U.S. white male and black male incarceration rates.
Bruce Drake's column is linked below.
Pew Research Center: U.S. Black Incarceration Rate
"In 2010, the incarceration rate for white men under local, state and federal jurisdiction was 678 inmates per 100,000 white U.S. residents; for black men, it was 4,347. According to the Bureau of Justice Statistics, black men were more than six times as likely as white men to be incarcerated in 2010."
---Bruce Drake, Pew Research Center