Can restaurant leftovers be carried across the US-Mexico border?

While most people don’t perceive uneaten scraps of steak and soiled napkins as a huge danger to the U.S., border agents work every day to prevent items such as those from entering the country.

Collecting trash and restricted materials from airplanes, ocean vessels, trucks and trains entering the United States is part of the Department of Agriculture’s regulated garbage and quarantine program.

The goal is to prevent potentially harmful plant pests and foreign animal diseases into the U.S. at more...

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