Engineering publications brought to you by Mark Allen

Defence & security

Butterfly encryption technique

£12m plan to support business

Ricardo builds UAV engines for military

Robot referees - good or bad?

AB wins Thales contract

BAE and Portendo join forces on explosives detector

Cobham develops more accurate landmine detector

Engineers enhance cargo scanning system

Researchers hope to sniff out homemade bomb factories

Call for consensus on deficit

Shark-inspired chemical sensors

CBI reports rising goods demand