"In Defense of Internment" is a book by Michelle Malkin that argues in favor of the internment of Japanese Americans during World War II. Malkin contends that the U.S. government's actions were justified due to national security concerns, suggesting that the internment was a necessary measure in the face of potential threats. The book challenges the prevailing narrative that the internment was solely a result of racism and injustice. Malkin presents evidence and arguments to support her view that the internment was a rational response to wartime fears, emphasizing the complexities of the historical context surrounding the decision.