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The secretary of homeland security faced sharp questioning about agency priorities from lawmakers on both sides of the aisle at a House Homeland Security Committee hearing Thursday, with many expressing deep concerns about whether the Trump administration is properly promoting Americans' safety.

Gabriela Hernandez and her two boys joined the "migrant caravan" of travelers across Mexico toward the United States, some hoping to cross the border. This is her story of the journey, compiled from multiple visits and interviews.

Scientists have unearthed a dark secret in Peru.

Hundreds of migrants from Central America have made it to Tijuana, Mexico, some with the intention of crossing into the United States and asking for asylum. CNN's Leyla Santiago traveled with the caravan, and shared their stories.

The British Natural History Museum, which has been hosting the prestigious competition for more than 50 years, revoked the prize on Friday on grounds the animal in the photo is not, in fact, living.

North and South Korea have pledged to end the Korean War later this year. CNN explains how it all began more than six decades ago.

Kim Jong Un has become the first North Korean leader to step into South Korean territory since 1953, crossing the demarcation line separating the nations for a historic summit on Friday morning.

Russia has run programs investigating methods of delivering nerve agents, "including by application to door handles," and is "highly likely" responsible for the poisoning of former Russian spy Sergei Skripal and his daughter Yulia, according to intelligence made public by the UK on Friday.

A shocking shooting. A potential pardon. A royal bundle of joy. What do you remember from the week that was?

North Korean leader Kim Jong Un crossed the southern side of the DMZ for a summit with South Korean President Moon Jae-in, the first time a North Korean leader has stepped into the territory since 1953.

For the first time in over a decade, the leaders of a divided Korea will sit down Friday to negotiate an end to a decades-long rivalry which has threatened at times to plunge the world into nuclear war.

Not many Americans have shaken the hand of North Korean dictator Kim Jong Un but in new photos released on Thursday, newly confirmed Secretary of State Mike Pompeo is doing just that.