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thank you. top of a brand new hour on cnn newsroom. good to have you. i'm victor blackwell. >> and i'm alisyn camerota. happening now, former trump add v -- adviser peter navarro is in court. he refused to cooperate with the investigation, and was arrested by the fbi earlier today. >> cnn's senior legal affairs correspondent paula reid is on this story. so let's start by just reminding everyone of the information that navarro has that the committee wants and how investigators got to this indictment. >> well, victor, navarro was subpoenaed by the house select committee investigating...

Minutes, a gunman armed with an ar-15 style rifle killed ten people. greg shaffer is an active shooting response expert and former fbi agent and author of the book "stay safe security secrets for today's dangerous world," greg, thank you for being with us. listen, there are schools, restaurants, churches where this happens, so no place is the same, right. >> doctors office. >> hospitals. >> grocery store. >> but if i hear gunshots or what i think are gunshots, what's the first thing i need to do? >> first thing you need to do is recognize it's gunfire. you know, oftentimes we rationalize our f...

Mor mourning of these parents. the funerals are still going on. i know these questions are still there, and that's one of what we have to solve along with ending gun violence. >> of course. and i mean obviously i hear you about the grief that is so raw in that community, and will be for a long time, and the idea that the officials aren't answering any questions. they're not answering the parents' questions, the media's questions. it's unusual covering so many of these. i want to move on to what you're doing in congress. you had this committee hearing and it felt like democrats and republicans ...

Top of mind of what they're going to do in their train car. greg, thank you very much for sharing your expertise with us. >> thank you. former trump adviser peter navarro arrested by the fbi for not complying with the subpoena from the january 6th committee. we'll speak to a former nixon white house lawyer about that. that's next. e° makes sleep... feel cool. because the tempur-breeze° transfers heat away from your body... ...so you feel cool, night afteter night. for a limited time, save up to $500 on select tempur-pedic® adjustable mattress sesets.

We need to think about prevention, not just how to respond to them, but how to prevent them in the first place. >> yeah. >> greg, if someone can't run, can't move, what do you do? >> well, we really have one -- only one option left, and that's to fight back. and you know, you look to improvise weapons, electrical cord, a pair of scissors, a coffee pot, a screwdriver, a hammer, broken leg of a chair. the high heel shoe of a woman. there are all kinds of weapons you can use at your disposal if you look hard enough, and that creates -- that requires quite a mindset to be able to do that. and agai...