Officer Sarah Went from the U.S. Customs and Border Protection and Canine Murdock demonstrate how they locate various produce that arrives through Customs at O’Hare International Airport.  Officer Went explained to First Graders how Murdock is able to detect “Apples, Citrus, Mangoes, Beef & Pork” through over 200 Million scent receptors in his nose!  Various items could directly affect U.S. Agriculture.   Murdock searched sample luggage and bags that First Graders used during a demonstration.  Murdock received 100% on finding the hidden items.  Afterwards, students were able to ask Murdock and Officer Went questions.  Murdock is a rescued shelter dog.  He is six-years-old and attended school in Georgia before graduating and becoming a working service dog.