As pertinent information is acquired through various international agencies, cargo security has become a priority.
The federal government is encouraging FedEx, UPS, and DHL to report their cargo manifest more quickly so cargo such as printer equipment can be screened thoroughly. Toner has been used by would be bombers to smuggle explosives on planes.
International packages sent to the US must be shipped with an established courier & screened individually according to a new regulation of Homeland Security.