Once a customer signs on the DIAD for a package, the information is relayed through the network.

FORBES: Logistics in Brown

Messages also can be sent to the DIAD about traffic jams on a driver's route or when a customer needs an immediate pickup.

FORBES: Logistics in Brown

They tote a computerized clipboard called a DIAD (Delivery Information Acquisition Device), which houses an internal radio that simultaneously captures and transmits delivery information.

FORBES: Logistics in Brown

Abdulkadir Diad Mohamed, 33 -- a Somali national -- and the driver of the vehicle in which he was traveling were killed as they tried to escape, the statement said.

CNN: Gunmen kill UNICEF worker in Somalia