Which of the following individuals is exempt from inspection?

American Indians born in Canada with at least 50% American Indian blood are exempt from inspection when entering the United States. This exemption is based on the recognition of their unique status and the rights afforded to them under treaties and U.S. law, which acknowledge their cultural and historical ties to the land. This special status allows them to cross the border without going through the standard immigration inspection processes that apply to other individuals.

In contrast, individuals with visas, green card holders, and aliens on temporary work permits are all subject to inspection when entering the United States. Visa holders must undergo inspection to ensure that they comply with the terms of their visa, while green card holders and those on work permits must also be processed to confirm their eligibility to enter the country. Therefore, the unique heritage and legal status of American Indians born in Canada set them apart from these other categories.