What's the Kennection? #347

In a controversial 2018 policy, the NFL announced league discipline for any on-field players not doing what during the national anthem?

What 1995 crime movie featured the first movie scene ever between Al Pacino and Robert De Niro, who never shared the screen in 'The Godfather Part II'?

The corpus callosum connects the two hemispheres of what part of the body?

Dedicating a Baltimore memorial in 1922, Warren G. Harding became the first U.S. president to be heard over what new medium?

Jay-Z's most recent record debuted on what music streaming service, which he co-owns?

What's the "Kennection"?