Trump Jr. floated the idea of turning Alcatraz back into a prison, but it seemed he was making one of his attempted jokes on social media.

President Trump announced plans to reopen the infamous Alcatraz maximum security prison. Why was it closed in the first place?

The month that Alcatraz closed down in 1963, “To Kill A Mockingbird” had been running in movie theaters for 12 weeks and John F. Kennedy, still alive, had just returned from a presidential trip to Central America to warn against the looming specter of communism.