Officially, nothing has changed about the long-standing US-Cuban immigration policy, commonly known as the "wet foot, dry foot" policy. But rumors in Cuba are circulating that the policy will soon end, closing the door on many Cubans who seek refuge in the US.
When Vladimir Putin first took control of Russia, Bill Clinton was the US president. Frontline filmmaker Mike Kirk tells how Putin came to consider the United States an existential threat, how he consolidated his power to confront the US, and why launching a campaign to disrupt the 2016 US presidential election would not have been out of character.
The National Rifle Association has called the AR-15 the "most popular rifle in America" and estimates Americans own more than 8 million of them. The NRA says the gun is popular because it's "customizable, adaptable, reliable and accurate." Those features may also explain why it's also become a weapon of choice for mass shootings.
Nearly a month after the House of Representatives took two historic votes to impeach the 45th president of the United States, the case moved to the Senate for trial. Look back at The World's coverage of the trial here.