A global hacking network was taken down in an FBI-led operation, the Justice Department announced. Jeff Pegues has more on the operation and the danger of ransomware attacks. Source

The graduate student accused of killing a UNC professor made his first court appearance Monday. Source

The White House on Tuesday released a list of 10 medications that will be subject to price negotiations under Medicare. Ed O’Keefe reports on how this could affect prices and what other drugs could be added going forward. Source

In addition to heavy rain and high wind, Hurricane Idalia is expected to bring life-threatening storm surges to parts of Florida. The Weather Channel meteorologist Greg Postel has more. Source

Millions of people are bracing for the impacts of Hurricane Idalia, which will continue gaining strength as it moves toward Florida. Life-threatening storm surges are expected along the state’s Gulf Coast. Omar Villafranca reports. Source

While parts of Florida were already feeling the effects of the outer reaches of Hurricane Idalia on Monday, the center of the storm was still barreling toward the state. The Weather Channel meteorologist Mike Seidel looks at when the storm will make landfall and what residents can expect. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source

It would be the only time former President Donald Trump did not appear in-person for his arraignment in the four criminal cases against him. Source

The Biden administration on Tuesday announced the first 10 drugs subject to Medicare price negotiations. The move is expected to cut costs for patients, but the discounts won’t kick in until 2026. CBS News senior White House and political correspondent Ed O’Keefe reports. Source

House Majority Leader Steve Scalise says he’s been diagnosed with a form of blood cancer. The Louisiana Republican is undergoing treatment and described the condition as “very treatable.” CBS News congressional correspondent Scott MacFarlane has more. Source