in june, we spoke to richard clarke, the nation's top former counterterrorism official. said he believes george w. bush is guilty of war crimes for launching the 2003 invasion of iraq. he served as national coordinator for counterterrorism. he resigned in 2003 following the iraq invasion. this is part of his response, about whether george bush should be tried for war crimes. >> i think things that they authorized probably fall within the area of war crimes. whether that would be productive or not, i think is a discussion we could all have. but we have established procedures now with the international criminal court in the hague, where people who take actions as serving presidents or prime ministers of countries have been indicted, and have been tried. so the president is there -- pr ecedent is there to do something like that. then went on to say that george bush wanted him to place the blame of 9/11 on iraq. the governmentit altogether, testified before a congressional committees, before the 9/11 commission, wrote a bush revealing what the administration had and had not

we're joined by former white house counterterrorism adviser richard clarke and jim langevin. richard, let me begin with you. since you left the government you devoted time and study to the threat from cyberattacks and you've concluded that we're a lot more vulnerable now than we were then. >> i think that's right. i think nation states have been building cyberarmies, cybercommands including the united states and there's probably a half dozen nations around the world that have already put these logic bombs in each other's networks, not that they're going to use them unless they go to war. so unless we -- >> so explain that. this black energy malware which is in our systems, we believe, why just park there? >> well, because you want to be able to get in when you can get in. it may be that if you wait it'll be too late to get in, new defenses will be created. you want to have the act to push a button when the war starts and bring the enemy to his knees. and so most modern nations now have tried this with their potential enemies. >> and congressman, you know the federal government

clark. back to you. >>> time now to check in with lester holt for a look at what's coming up on "nbc nightly news." >> we'll hear from richardreports of another american executed by isis militants. plus, an update on the latest ebola patient to arrive in this country for treatment. also another big blast of winter weather. snow advisories in two dozen states. and a warning about the dangers of energy drinks when they're consumed by young children, when we see you in just a few minutes for "nbc nightly news." back to you. >> we'll see you soon, lester. we'll be right back. >>> we have a winter weather advisory in effect for the poconos from 7:00 p.m. to 9:00 a.m. take a look at all the moisture heading our way, so a rainy morning commute and evening commute tomorrow. >> that's nbc 10 news for now. we'll see you back here tonight after the game. >>> on this sunday night, pure evil has another american is executed by isis terrorists, the president condemns the killing. and the top military officials say the battle against isis will take years. >>> without warning, gas leaks from a texas chemical plant killing four workers and l

clark for now. >>> the president expressed outrage at the beheading of another american hostage at the hands of isis extremists peter kassig was kidnapped a year ago. richardngel reports the killing was revealed in an isis video. >> the video put out by isis has been authenticated making peter the fifth western hostage murdered by isis since august and the third american. >> today president obama called his murder an act of pure evil by a terrorist group that the world rightly associates with inhumanity. the 26-year-old former army ranger from indiana who served in iraq traveled to syria last year to volunteer as a medic. while delivering supplies, isis militants stopped him at a check point and kidnapped him. he converted to islam and changed his name to cass kals reportedly endured torture and tra a ma as western hostages at times his cell mates were taken one by one to be9)úñ murdered. he knew his time would come. last month his father ed read a letter written to the family by their son. >> don't worry, dad. if i go down i won't go down thinking anything but what i know to be true. that you and mom love me more than the moon and stars. >> the kassig fam

clark, from virginia, republican. caller: half of the senate, every bill should be read before passed. we would not have obamacare. host: richardwhat do you want this republican-controlled congress to do in the 114th? caller: every bill has to be read before it is voted on. host: i see. you want that to be one of their rules. caller: yes. host: jim, an independent. caller: good morning. i am just going to make a comment. i am happy to see that the republicans regained the senate. i think though when they go back -- until obama is out of office -- i do not think that anything substantial is going to get done because he seems to be more thatested in doing things are all the ethical rather than getting anything done that is important, and is climate change thing is an example of that. right now, the country's economy and things in this country are basically -- we are just coming apart from the inside out here. instead he is more interested in performing for the world and showing that we have got a new attitude towards climate change. it appeared into do think it is scientifically proven yet. there has been more evidence that shows