Final answer:
U.S. Customs inspections focus on confirming legality, safety, and proper taxation, but not directly on whether goods are made with illegal labors, which is not a routine function of Customs inspections.
Step-by-step explanation:
The reason that is NOT a typical reason for U.S. Customs to examine goods and documents is 'D. To determine whether the goods are made with illegal labors.' U.S. Customs inspections typically focus on verifying the legality, safety, and proper taxation of goods entering the country.
Customs officials examine goods to determine their value and their dutiable status (A), ensure they do not contain prohibited articles (B), and confirm that the goods are correctly invoiced (C). While concerns related to illegal labor practices may influence trade policies and lead to import restrictions or sanctions, the direct examination of goods for evidence of illegal labor is not a standard function of routine Customs inspections.
The role of Customs is to enforce laws related to the import and export of goods, collect duties, prevent smuggling and the entry of prohibited items, and protect domestic industries through the enforcement of trade regulations and tariffs, as mandated by federal law and international trade agreements.