A day after a gunman attacked his synagogue, Rabbi Yisroel Goldstein delivered a message of resilience. What more are we learning about the shooter's motives? Joe Biden certainly has name recognition. But does he have a plan to distinguish himself from the other 19 Democrats running for president? He'll make that case at his first campaign rally today in Pittsburgh. And Boeing's CEO will face shareholders today for the first time since the company's 737 MAX planes were grounded. What's the company doing to try and get their planes back in the air?

China defends a global push to build infrastructure. The Chinese president promotes it. Think tanks explain it. Even college students are encouraged to study it. So why does it still make westerners suspicious? Is next year's election simply a referendum on President Trump? Some Midwestern voters have more than that on their minds. And who lives and who dies in Avengers: Endgame? We can't answer that without spoiling the movie but we can reflect on what Marvel films have meant to audiences. 22 of them in 11 years.

Joe Biden's been indecisive about a presidential run. That indecision ended today. The former vice president became the 20th Democrat to declare. What's his pitch to a party with a diverse field to choose from? A surge in measles cases has led to extraordinary measures in New York City. The mayor declared a state of emergency this month. So why is the outbreak getting worse? And Russian president Vladimir Putin shook hands today with North Korean leader Kim Jong Un. They pledged to boost ties between the two nations. What implications do today's meetings hold for for U.S. diplomacy?

Sri Lanka's president admits that critical intelligence never reached the highest parts of government ahead of the Easter Sunday attacks. He's promising an overhaul. But what changes could prevent a similar attack? Robert Mueller wrote that the Russian government interfered in the 2016 election in sweeping and systematic fashion. Presidential adviser Jared Kushner meanwhile is dismissing it as a couple of Facebook ads. How extensive was the Russian interference? And Kim Jong Un's armored train has arrived in Russia. North Korea's leader is meeting tomorrow with Vladimir Putin. What's on the agenda?

In Sri Lanka, survivors of those killed on Easter are not just dealing with grief. They're also dealing with the reality that there were warnings ahead of these attacks. Could the government have done more? Some Democrats are pushing for impeachment, saying that members of Congress should have to go on record about President Trump's behavior. Why are other Democrats urging caution? And the Supreme Court today considers whether it's constitutional for the census to ask if you're a citizen. The Trump administration likes the idea. Opponents say it will produce an undercount.

Church leaders in Sri Lanka demand retribution after attacks on Easter Sunday left hundreds dead. Were there warning signs of the danger? President Trump's personal lawyer gives yet another take on the infamous Trump Tower meeting in 2016, claiming that there's nothing wrong with taking information from the Russians. House Democrats think otherwise and the Judiciary Chairman says at this point, he won't rule out impeachment. And on this Earth Day, a new NPR poll reveals that most Americans like the idea of teaching climate change in school. But most teachers said they don't cover it in their classes. Why is that?

Fed up with government inaction, young people start rebuilding Mosul on their own. But in post-ISIS Iraq, volunteering can quickly become an act of rebellion. We're sharing a bonus episode of NPR's Rough Translation.

Robert Mueller's report did not indict the president but detailed efforts to derail an investigation. What do Democrats do as the president claims victory? And protesters finally forced Sudan's president from power last week. But their demonstrations haven't stopped. What do they want next?

The 448-page document, released today after a nearly two-year-long inquiry, says Mueller's investigation did not establish that the Trump campaign "conspired or coordinated" with the Russian interference effort, which was described as "sweeping and systematic." The NPR Politics Podcast breaks down everything you need to know about what's in the report.

We don't know what's in the Mueller report, but people already have opinions. What bothers Democrats about the timing of today's release? President Trump sounded optimistic even after his last meeting with Kim Jong Un broke down. So why is North Korea now testing new tactical weapons? And life after death? Scientists gathered pig brains from a slaughterhouse to see if they could be revived. It seemed to work. So what are the ethical implications?