Advocates say the battle against HIV is especially tough tough for people of color -- who face racism in health care practices. Correspondent Allison Keyes has today's "Reporter's Notebook."

CBS News Correspondent Peter King looks at the country's opioid addiction crisis in today's "Reporter's Notebook."

Around the world, people are remembering the American civil rights giant who died 50 years ago today. CBS News Correspondent Steve Futterman has today's "Reporter's Notebook."

Today is the 45th anniversary of the first mobile phone call on a phone that weighed more than two pounds and cost nearly $10,000 in today's dollars when it finally became available in 1983. And, unlike today's mobile phones, all it could do was make phone calls. CBS News Technology Consultant Larry Magid has today's "Reporter's Notebook."

Nelson Mandela's formidable ex-wife, the anti-apartheid campaigner and ANC politician, Winnie Madikizela-Mandela (MAH-dih-kuh-ZELL-uh), is dead at 81. CBS News Correspondent Vicki Barker has today's "Reporter's Notebook."

The latest example of the power of social media is playing out in a verbal tug of war between a high school student and a talk show host. Correspondent Gary Nunn has today's "Reporter's Notebook."

A historic day for the youngest Nobel laureate -- the co-recipient of the 2014 Nobel Peace Prize in a struggle for the world's children to receive an education. CBS News Correspondent Gary Nunn has today's "Reporter's Notebook."

Fair housing advocates are suing Facebook over discriminatory real estate ads. Correspondent Vicki Barker has today's "Reporter's Notebook."

Charges filed against pedophile sports doctor Larry Nassar's former boss at Michigan State University. CBS News Correspondent Vicki Barker has more in today's "Reporter's Notebook."

The bankruptcy of an American gun-maker -- and what it doesn't mean about gun ownership post-Parkland. CBS News Correspondent Vicki Barker has today's "Reporter's Notebook."