Tae Heung "Will" Kim, a Korean American green card holder who has lived in the U.S. since age 5 and whose mother is a U.S. citizen, was detained by CBP at San Francisco International Airport on July 21, 2025, upon returning from his brother's wedding in South Korea. He is a Ph.D. candidate at Texas A&M University researching a vaccine for Lyme disease. Kim was held for more than a week without access to legal counsel, his asthma medication, sunlight, or a bed to sleep in, with lights kept on continuously in his holding room, before being transferred to detention facilities in Arizona and Texas. His attorney, Eric Lee, said a CBP supervisor told him the Constitution did not apply to Kim and that deportation proceedings were based on a 2011 misdemeanor marijuana charge for which Kim had completed community service.