blinken was preparing to visit china for the high-stakes meeting, they were able to get into the state department email, and they have touted the defenses and how it reported to microsoft this incident and vice versa, and so there are a number of fast-moving parts of this story and the larger challenge of dealing with the cyber espionage threat that the biden administration is facing. sara? we will continue to check in with you, sean lyngaas, for this reporting. thank you. and chris christie and tim scott say they have hit an important mark with enough donors to make it for the presidential debate. among the requirements put in place by the rnc that the presidential candidates must
walmart or amazon or bank of america. it s a very serious threat u.s. intelligence officials take seriously. and what have we done to target iran in the past? well, you bring up a very good point. the u.s. probes networks all over the world of our adversaries and specifically with iran, it s widely believed that the u.s. and israel were responsible for the suxnet. there s an argument that the attacks iran perpetrated against the west were in response and the u.s. started it. u.s. policy makers had a very strong intent to subdue iran s nuclear program but that was a very aggressive cyber move by the united states and israel. who does the intelligence community see as the biggest and most imminent threat right now? reporter: well, it s sort of neck in neck between china and russia. some say russia is more aggressive right now but china overall in terms of a cyber espionage threat, they are doing