...on, and with loosely affiliated but networked adversaries using commercial devices and encryption, the technical impediments to signals col- lection g... ... loosely affiliated but networked adversaries using commercial devices and encryption, the technical impediments to signals col- lection grew at a geo... ...nications industry .They could acquire without great expense communication devices that were varied, global, instantaneous, complex, and encrypted. Th... ...lated—until an inspector pried apart and identified one of the four timing devices concealed within black boxes. Ressam was placed under arrest. Inves... ...r hijack- ings” and were able to build and conceal sophisticated explosive devices in lug- gage and consumer products. 29 Tenet told us that in his wo... ... . . . aircraft can be hijacked with either fake weapons or hoax explosive devices. Cabin crew or pas- sengers can also be threatened with objects suc...