But they’re seen as a potential key in the fight against lung cancer, the leading cause of cancer death globally.
3. President Trump’s personal lawyer, Michael Cohen, above, lost his bid to block prosecutors from reviewing a trove of materials the F.B.I. seized from his office, home, hotel room and safe deposit box last week.
And the judge ordered that the name of another Cohen client be divulged: Sean Hannity, the Fox News host.
Meanwhile, supporters of President Trump and Hillary Clinton have one thing in common: anger at James Comey, the former F.B.I. director.
Mrs. Clinton’s allies remain furious at Mr. Comey for actions that they believe tipped the presidential election, while the president sharply attacked after Mr. Comey, in an interview with ABC on Sunday, called the president a serial liar who treated women like “meat,” and described Mr. Trump as a “stain” on everyone who worked for him.
4. Western officials accused Syria and Russia of preventing chemical weapons experts from reaching the site of a suspected chemical attack by the Syrian government.
The attack, which killed about 70 people, led to airstrikes by the United States and its allies over the weekend. Above, Russian military police officers on Monday in Douma, the site of the attack.
In Russia, a journalist who had reported on Russian paramilitary groups in Syria died after falling from his balcony, the authorities there said. The death set off alarms in a country where activists and journalists are sometimes killed in connection with their work.
5. A riot at a maximum-security prison in South Carolina left seven inmates dead and 17 others injured.
The fights at Lee Correctional Institution started around 7:15 p.m. on Sunday, and officers were unable to secure the prison until around 2:55 a.m. on Monday.
State officials have pledged for years to make the state’s prisons safer after a series of deadly episodes. Lee’s warden said in 2013 that it was the most dangerous prison in South Carolina.
6. Starbucks’s chief executive called the arrest of two black men at a Philadelphia location “reprehensible.”
The coffee shop has been the site of protests, above, since the episode last week, in which the men were surrounded by police officers and one was escorted out of the Starbucks in handcuffs. The chain said the employee who called the police no longer worked at the shop.
7. “There are holes in the ceiling, skylights don’t work, the walls need to be painted.”
That was one of 4,200 public schoolteachers who responded to our callout about the consequences of a decade of budget cuts. They described decrepit classrooms, 25-year-old textbooks and annual out-of-pocket expenses often exceeding $1,000.
An Arizona teacher summed up the feelings that have led to recent strikes in her state, West Virginia, Oklahoma, Kentucky and others: “Our students deserve better. Our nation deserves better.”
8. The reporting that ignited the #MeToo movement has won a Pulitzer Prize.
The New York Times and The New Yorker won the award for public service for their reporting on sexual harassment that led to a reckoning about the treatment of women by powerful men in Hollywood, politics, media and technology. Above, from left, the Times reporters Megan Twohey and Jodi Kantor and the paper’s executive editor, Dean Baquet.
The Times also shared the national reporting award with The Washington Post for coverage that unearthed possible ties between Russia and President Trump’s inner circle, and won the Pulitzer for editorial cartooning for a series that chronicled a Syrian refugee family’s entry into the United States. Read The Times’s work and a full list of winners.
9. “Rich with history, potently political and visually grand. By turns uproarious, rowdy, and lush. A gobsmacking marvel of choreography and musical direction.”
Suffice to say our pop music critic was a fan of Beyoncé’s performance at the Coachella music festival. “There’s not likely to be a more meaningful, absorbing, forceful and radical performance by an American musician this year, or any year soon,” he wrote. (Here are some clips.)
10. Finally, we tend to see eye to eye with our best friends. New research suggests one reason for that: brain-to-brain similarities.
Scientists, using a large group of graduate students as subjects, found that the brains of close friends responded similarly as they viewed a series of short videos, showing the same ebbs and swells of attention, distraction and boredom.
Next, researchers want to reverse the experiment: scanning incoming students who don’t know one another yet, and seeing whether those whose neural patterns are similar end up as friends.
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