>> reporter: they are exploiting the digital domain to shape perceptions in their favor. and no group has been more prolific in this space. >> america's enemies are evolving. and america has to do the same. >> we have to maintain a robust set of capabilities, overhead, terrestrial, collection by aircraft, collection by humans, whatever it is. so the trick is, how do you make all the cylinders work together and in harmony. >> the seemingly limitless number of threats and adversaries. >> tell me how inundated with all this threat intel how you unwind. >> when i was in the pentagon as the undersecretary of the director of intelligence. i would have a few people in and have a beer or a glass of wine and i would have a martini. this job, every night. >> it is a daunting channel. combatting both the enemies you know and those you don't on battlefields and in the shadows. on land and at sea, in outer space and cyberspace, never knowing for sure what's next. -- captions by vitac -- www.vitac.com a lot of breaking news happening. chilling new information about