World AIDS Day 2010: Kim Kardashian, Justin Bieber silent on Twitter

World AIDS Day started on December 1, 1988. The theme this year focuses on "Universal Access and Human Rights." According to UNAIDS estimates, 33.3 million people are currently living with HIV.There are a number of ways to get involved and support this cause, but celebrities like Kim Kardashian are making a special sacrifice to bring attention to the cause. She will be completely silent on