An American official said the United States had information undermining Russia’s claim that a device it is developing is for peaceful scientific research.

He wrote a popular series of books revolving around a hunchbacked detective, Shardlake, whose troubles echo the author’s experiences of childhood bullying.

The university said it would hold a celebration at the Los Angeles Memorial Coliseum. More than 100 school-specific graduations and smaller receptions will also take place with tighter security.

For years, activists and politicians have led discussions about whether disputed museum objects should go back to their countries of origin. At this year’s Biennale, artists are entering the fray.

“I’m sure he underestimated me,” Ms. Noem writes of the North Korean leader in her forthcoming book. A spokesman said the error would be corrected.

Hope Hicks, once a spokeswoman for Donald J. Trump, broke down in tears on the witness stand as she talked about their time together.