Video on msnbc.com: Former Army Specialist and sexual assault survivor Brigette McCoy talks to MSNBC’s Alex Witt about the prevalence of sexual assault in the United States military. She reveals why she is not optimistic about the rate and scope of change regarding abuse within the military. She talks about the necessity of separating members who serve honorably and individuals who commit rape while they are the military.

Three teenagers sexually assaulted a 12-year-old girl and posted the attacks on Facebook, Cook County prosecutors said Friday. Justin Applewhite, 16, Kenneth Brown, 15, and Scandale Fritz, 16, attacked the girl at Fritz’ home in the 400 block of West 60th Place on Dec. 15,