evidence: U.S. immigration officials recorded more than 2 million encounters with immigrants at the southwest border in the fiscal year that ended in September. [...] We looked up how the department addresses "got aways." The department’s annual report on border statistics attempts to estimate the number of people who slipped past border agents, both detected and undetected. In fiscal year 2020, the department reported 136,808 "detected got aways" and estimated another 200,000 undetected unlawful entries into the U.S. The numbers for 2021 and 2022 are not yet available. [...] Email exchange, Aaron Reichlin-Melnick, director of policy at the American Immigration Council, Sept. 30, 2022