Michaela Dietz, an adoptee from South Korea, holds a baby photo of Robyn Joy Park, who was also adopted from South Korea as an infant and whose identity was switched, next to Park's newborn daughter, Rae, while visiting Park at her home in Pasadena, Calif., Friday, April 19, 2024. Park hasn't found her real parents. She thinks often of the girl whose identity she was given, and wonders: what happened to her? (AP Photo/Jae C. Hong)

Robyn Joy Park, an adoptee from South Korea, walks through her home after the birth of her first child, in Pasadena, Calif., Friday, April 19, 2024. (AP Photo/Jae C. Hong)

Robert Calabretta sits for a portrait at the restaurant where he works, Thursday, Feb. 15, 2024, in New York. (AP Photo/David Goldman)

Robert Calabretta holds his baby photo from before he was adopted out of South Korea to a family in the United States, Thursday, Feb. 15, 2024, at his apartment in New York. (AP Photo/David Goldman)

Robert Calabretta, who was adopted as a baby out of South Korea to an American family, walks through his neighborhood, Thursday, Feb. 15, 2024, in New York. (AP Photo/David Goldman)

Robert Calabretta holds a letter written to him by his biological father while sifting through family mementos at his apartment, Thursday, Feb. 15, 2024, in New York. (AP Photo/David Goldman)

Robert Calabretta rides the subway Thursday, Feb. 15, 2024, in New York, with the Empire State Building in the background. (AP Photo/David Goldman)

Han Tae-soon, who believed her daughter had been missing for years before discovering she had been adopted by a family in the United States, stands for a portrait at her home in Anyang, South Korea, Saturday, June 1, 2024. (AP Photo/Jae C. Hong)

A photo magnet of Robert Calabretta, second from right, when he reunited with his biological mother, left, and siblings, decorates his apartment, Friday, Feb. 16, 2024, in New York. He prefers his new name now: Hanil Lee. (AP Photo/David Goldman)

Robert Calabretta inspects wine glasses at the restaurant where he works, Thursday, Feb. 15, 2024, in New York. (AP Photo/David Goldman)

Han Tae-soon, who believed her daughter had been missing for years before discovering she had been adopted by a family in the United States, shows messages exchanged between her and her granddaughter, the child of her once-missing daughter, Laurie Bender, in Anyang, South Korea, Saturday, June 1, 2024. (AP Photo/Jae C. Hong)

Robert Calabretta holds a picture of his biological mother and brother while sifting through family mementos at his apartment, Thursday, Feb. 15, 2024, in New York. After Calabretta was adopted as a baby to an American family, hospital officials told his mother to assume he had died. (AP Photo/David Goldman)

Robyn Joy Park, holds her newborn daughter, Rae, at her home in Pasadena, Calif., as she greets her friend, Michaela Dietz, Friday, April 19, 2024. Both women are adoptees from South Korea, and both learned the identities listed on their adoption paperwork actually belonged to other children. (AP Photo/Jae C. Hong)

A photo book sits in the home of Han Tae-soon in Anyang, South Korea, on Saturday, June 1, 2024. Han's daughter, Laurie Bender, third from right sitting next to Han, made her the album to celebrate their reunion. Bender was approached by a strange woman while playing in the front yard in Korea in 1975. She remembers the woman saying that Bender's family didn't want her anymore because her mother had another baby. She went with the woman and felt so sad she thought she might die. (AP Photo/Jae C. Hong)

Robyn Joy Park reads a card offering best wishes and advice for her daughter, Rae, at her home in Pasadena, Calif., Friday, April 19, 2024. The card was written by the daughter of Michaela Dietz. Park and Dietz were both adopted as children from South Korea, and later learned their identities were switched with other children. (AP Photo/Jae C. Hong)

Han Tae-soon's notebook sits on a table at her home in Anyang, South Korea, Saturday, June 1, 2024. Han, who is in her 70s, has notebooks feverishly annotated with English translations, written during countless hours trying to learn her daughter's language. (AP Photo/Jae C. Hong)

Robyn Joy Park, an adoptee from South Korea, stands for a photo at her home in Pasadena, Calif., Friday, April 19, 2024. (AP Photo/Jae C. Hong)

Han Tae-soon, sits for a photo with a computer tablet displaying an old photo of her daughter, at her home in Anyang, South Korea, Saturday, June 1, 2024. Han's daughter went missing and she searched for her for years, only to discover later she'd been adopted to the United States. (AP Photo/Jae C. Hong)

In this photo provided by Robert Calabretta, right, he and and his biological father, Lee Sung-soo, stand together for a photo while on a visit in Daegu, South Korea, in August of 2020, during the COVID-19 pandemic. (Courtesy Robert Calabretta via AP)

Robert Calabretta, who was adopted as a baby out of South Korea to an American family, sits in his apartment, Thursday, Feb. 15, 2024, in New York. (AP Photo/David Goldman)

Robyn Joy Park, an adoptee from South Korea, gently pats her newborn daughter, Rae, at her home in Pasadena, Calif., Friday, April 19, 2024. (AP Photo/Jae C. Hong)

Robyn Joy Park, an adoptee from South Korea, kisses her newborn daughter, Rae, on the forehead at her home in Pasadena, Calif., Friday, April 19, 2024. (AP Photo/Jae C. Hong)