Afghanistan faces a humanitarian catastrophe both within and beyond its borders as Taliban gains displace thousands in the war torn country. UNHCR Global Spokesperson Babar Baloch speaks with CNN's Michael Holmes about what can be done to prevent a crisis.

Monsoonal moisture is causing isolated heavy downpours from New Mexico to Montana. CNN Meteorologist Tyler Mauldin has the forecast.

Italy's Gianmarco Tamberi and Qatar's Mutaz Essa Barshim decided to share the gold medal in the men's high jump in the Tokyo Olympic Games in an unprecedented move that prompted cheers around the world for their sportsmanship. CNN's Patrick Snell reports.

In Southern Turkey, villagers are facing apocalyptic scenes as wildfires continue to sweep the country. CNN's Arwa Damon reports.

Tunisia gave a hero's welcome to swimmer Ahmed Hafnaoui, who stunned the world by winning gold in the men's 400 meter freestyle. Many Tunisians say his win is a bright spot as the country undergoes a coronavirus surge and political turmoil. CNN's Michael Holmes reports.

Andy Slavitt, the former White House senior adviser for COVID-19 response, discusses vaccine mandates and the delta variant with CNN's Phil Mattingly.

CNN's Phil Mattingly received many viewer questions about COVID-19, the delta variant and more. Dr. Ashish Jha, dean of Brown University's School of Public Health, joined him to answer them.

Despite being blocked in Boston, actor Lawrence Hilton-Jacobs describes how "Welcome Back, Kotter" went on to become a hit show. Read more on why Boston missed "Kotter's" premiere here, and watch CNN Original Series "History of the Sitcom" Sundays at 9 p.m. ET/PT.