American Science & Engineering [ASEI] received a follow-on order from a Middle Eastern customer for Gemini parcel inspection systems worth $3.4 million. The order includes service, parts and warranty. Separately, the company says the U.S. government has purchased its first Z Portal drive-through screening system in support of counter-drug and anti-terrorism efforts. The Z Portal system is configured with three Z Backscatter imaging modules–left, right and top-view–and Forwardscatter technology. The government has also purchased three more Z Backscatter Vans for inspecting trucks and passenger cars in high-volume traffic areas. The value of the U.S. government contracts is $3.9 million and includes installation and operator training.