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oren liebermann at the pentagon. let s go arlette at the white house. reporter: president biden offered his first comments on the situation regarding that chinese spy balloon just moments ago, saying they are prepared to take care of it. president biden has been receiving briefings since tuesday, including potential options relating to how they could address this. here is how he answered reporters questions moments ago. you heard president biden say we are going to take care of it. officials here at the white house say the president is consistently being briefed on the various options they have been presented. one option was the possibility of shooting down this plane. that s something they have not ruled out. previously as he was presented that option, he was warned about the potential impact it could have o and impact it could have here on the ground and affecting people. we will see what else the white house and pentagon has to say later today regarding this balloon. it
they re somewhat organized. the strategy? attack the weakest links, trying to cause a domino effect. when you remove one substation, but maybe it s multiple substations, you have this collapsing effect on the system. this defendant, sarah clendaniel, according to court documents, told a confidential informant that she expected to die of a kidney disease within a few months and wanted to, quote, accomplish something worthwhile before her death. cnn has been unable to reach the defendants or their lawyers for comments on these charges. wolf? all right. reporting for us, bryan, thank you very much. and to our viewers, thanks very much for watching. i m wolf blitzer in the situation room. you can always follow me on twitter and instagram@wolf blitzer. you can tweet the show at cnn sit room. erin burnett out front starts right now.
reporter: as one manifesto puts it, when the lights don t come back on, all hell will break loose. they are intent on destroying critical infrastructure specifically energy across the united states. they are talking kind of behind the scenes within these dark web portals and chat rooms and they are somewhat organized. reporter: the strategy? attack the least protected weakest links trying to cause a domino effect. when you remove one substation, but maybe multiple substations, you have this collapsing effect on the system. reporter: sarah according to documents said she expected to die of a kidney disease within a few months and wanted to accomplish something worthwhile before her death. cnn has been unable to reach either of the defendants or their lawyers for comment, but both have pleaded not guilty. brian todd, cnn, washington. and still ahead, huge flames near the scene of a train
. government reports say it could cause a domino effect and black out huge parts of the country. if you were to target eight or nine very key nodes throughout the united states, you potentially could have a collapsing effect. reporter: cross-country power lines and substations are usua usually in out of the way places hard to protect. experts say to keep the lights on, the grid needs to be more resilient to attacks. key equipment needs to be better protected. and utilities need to be better prepared to fix damaged equipment. but that s not easy. it s inherently very difficult to harden or protect it all. no one at the moment has authority to deal with the entire system and we need to get that situation fixed. reporter: the responsibility is spread between federal authorities, who regulate interstate lines, states, and power companies. we woke up at 5:30 and the power was out. reporter: amanda clark found out how real the threat was