The high-tech X-ray machine used by Customs and Border Inspection agents in the Agriculture Inspection Area color-codes organic (orange), plastic (green) and metal (blue) items for easier identification. Here an officer looks at bags on the screen on Wednesday, Feb. 8, 2012 at Washington Dulles International Airport. (Barbara L. Salisbury/The Washington Times)

Photo by: BARBARA L. SALISBURY

The high-tech X-ray machine used by Customs and Border Inspection agents in the Agriculture Inspection Area color-codes organic (orange), plastic (green) and metal (blue) items for easier identification. Here an officer looks at bags on the screen on Wednesday, Feb. 8, 2012 at Washington Dulles International Airport. (Barbara L. Salisbury/The Washington Times)