Americans across the East Coast are preparing for one of the hottest Independence Days in recorded history. Triple-digit temperatures have disrupted travel, strained the energy grid and forced some communities to change or cancel planned celebrations. Meanwhile, health authorities in Europe have now linked thousands of excess deaths to record heat. Jeff Goodell joins Amna Nawaz to unpack it all.

In our news wrap Friday, Iran began funeral ceremonies for its late supreme leader, hundreds more in Venezuela have been confirmed dead after last week's earthquakes, Egypt won its first-ever game in the World Cup's knockout round, New York is preparing for Taylor Swift and Travis Kelce's expected wedding, and London's National Archives says it found a rare copy of the Declaration of Independence.

In our news wrap Friday, Iran began funeral ceremonies for its late supreme leader, hundreds more in Venezuela have been confirmed dead after last week's earthquakes, Egypt won its first-ever game in the World Cup's knockout round, New York is preparing for Taylor Swift and Travis Kelce's expected wedding, and London's National Archives says it found a rare copy of the Declaration of Independence.

By some estimates, Russia has taken 1.5 million casualties in its war against Ukraine, including a half million killed since the war began. Now, as Russia runs out of recruits, it is bringing in mercenaries from far away. Special correspondent Simon Ostrovsky reports. A warning: Some images in this story are disturbing.

This weekend marks one year since catastrophic floods at Camp Mystic killed 28 people, most of them young girls. In their final report, state investigators said the camp failed to respond adequately to storm warnings. Today, many parents are still pressing for stronger camp safety standards, even as they honor their daughters' memories. Amna Nawaz speaks with Lacey and Lars Hollis for more.